Dioxole related

Quinio, Pauline published the artcileSc(OTf)3-Catalyzed Addition of Bromomagnesium 2-Vinyloxy Ethoxide to Various Aldehydes Leading to Protected Aldol Products, Product Details of C8H14O2, the publication is Synlett (2016), 27(11), 1715-1719, database is CAplus.

The addition of bromomagnesium 2-vinyloxy ethoxide to various aldehydes in the presence of 10 mol% Sc(OTf)₃ provides a broad range of functionalized protected aldol compounds The enantioselective preparation of these aldols can be achieved by a Swern oxidation-CBS reduction sequence. Use of the dioxolane derived from 2-bromocyclohexanone provides the expected aldol product as the anti-diastereoisomer (dr >99:1).

Synlett published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Product Details of C8H14O2.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Borrmann, Ruediger published the artcileAsymmetric Hydrogenation of Cyclic Imines and Enamines: Access to 1,5-Benzodiazepine Pharmacophores, Recommanded Product: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, the publication is Synthesis (2017), 49(2), 310-318, database is CAplus.

A new strategy towards the pharmacol. relevant class of dihydro-1,5-benzodiazepines was developed by applying a rhodium-catalyzed asym. hydrogenation. The approach represents an efficient protocol providing access to the optically active products I (R¹ = Ph, 4-MeC₂H₄, 2-furyl, Me, etc., R² = H, 7-Me) in excellent yields (up to 99%) and with high enantioselectivities (up to 92% ee). The versatility of the methodol. was demonstrated by a broad substrate scope including alkyl, aryl, and heteroaryl substituents as well as halides. Furthermore, investigations regarding the reaction mechanism were performed and unraveled a preferred reaction of the tautomeric enamine in the rhodium-catalyzed asym. hydrogenation.

Synthesis published new progress about 503538-69-0. 503538-69-0 belongs to dioxole, auxiliary class (Atropisomeric Bisphosphine Ligands, name is (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, and the molecular formula is C38H24F4O4P2, Recommanded Product: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Schormueller, Josef published the artcileAnalysis of volatile aroma substances in tomatoes by gas chromatography and mass spectroscopy, Name: 2,2,4-Trimethyl-1,3-dioxolane, the publication is Zeitschrift fuer Lebensmittel-Untersuchung und -Forschung (1969), 141(1), 1-9, database is CAplus.

The following hitherto unknown components of tomato aroma were identified: C6H6, CHCl3, Et2CO, 2-ethylfuran, 2,2,4-trimethyl-1,3-dioxolane, MeCOBu, MeSSMe, PhMe, p-xylene, cis-PrCH:CHCHO, C6H13CHO, triisobutylene, cyclooctatetraene, C10H22, EtO(PrO)CHMe, C5H11CO2Me, EtCH:CH(CH2)2OAc, iso-PrPh, 1,3,5-Me3C6H3, BuCH:CHCHO, C11H24, 1,2,3-Me3C6H3, (PrO)2CHMe, o-Cl2C6H4, EtCOCH:CH2 or CH2:CHCOCHO, MeCH:CMeCHO, BuCN, EtCH:CHCHO, MeCH:-CHCH2CHO, EtCH(OH)CH:CH2, EtCH:CMeCHO, EtO(iso-C5H11O)CHMe, myrcene, 3-carene, isomeric methylheptenone, and isomeric methylhexanol. 37 references.

Zeitschrift fuer Lebensmittel-Untersuchung und -Forschung published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Name: 2,2,4-Trimethyl-1,3-dioxolane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Kim, Yong Ryun published the artcileConjugated polyelectrolytes for stable perovskite solar cells based on methylammonium lead triiodide, Name: 9-(6-Bromohexyl)-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole, the publication is Journal of Materials Chemistry A: Materials for Energy and Sustainability (2022), 10(7), 3321-3329, database is CAplus.

Despite the outstanding role of conjugated polyelectrolytes in organic solar cells, the use of conjugated polyelectrolytes in perovskite solar cells (PSCs) has rarely been reported due to instability issues of the material itself under operating conditions. Herein, an efficient and stable inverted perovskite solar cell (p-i-n) was fabricated by introducing an amine-containing carbazole-based conjugated polyelectrolyte (CzNBr) with a simple and room temperature solution process as a cathode buffer layer (CBL) at the underlying layer of a metal electrode in PSCs. Promisingly, this approach allows not only modification of the work function of the metal electrode, yielding improved charge extraction properties, but also detainment of the migrating ionic defects of the perovskite layer induced by the metal electrode, resulting in robust stable PSCs. Ultimately, it exhibits a significant enhancement of both the efficiency (20.28%) and stability of PSCs based on methylammonium lead triiodide (MAPbI₃); nonencapsulated PSCs maintained 80% of their initial efficiency (T₈₀) under continuous heating at 85 °C for 1000 h and 50 cycles of thermal cycling tests (from -25 to 85 °C). The excellent charge extraction and detainment of ionic defects with the CzNBr layer enable the demonstration of highly stable and efficient PSCs to prove the huge potential of this new type of CBL in applications. Furthermore, our results open up new possibilities for CPEs in PSCs in terms of their performance to demonstrate easily processed highly efficient and stable PSCs.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about 1268162-40-8. 1268162-40-8 belongs to dioxole, auxiliary class Boronic acid and ester,Boronic acid and ester,Bromide, name is 9-(6-Bromohexyl)-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole, and the molecular formula is C30H42B2BrNO4, Name: 9-(6-Bromohexyl)-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Shen, Guoli published the artcilePd/Zn Co-catalyzed Asymmetric Ring-opening Reactions of Aza/Oxabicyclic Alkenes with Oximes, Computed Properties of 503538-69-0, the publication is Asian Journal of Organic Chemistry (2019), 8(1), 97-102, database is CAplus.

An application of various oximes as nucleophiles in the asym. ring-opening (ARO) reaction of aza/oxabicyclic alkenes resulting in cis-ARO products has been developed. The reaction was co-catalyzed by Pd(OAc)₂ and Zn(OTf)₂ with (R)-DIFLUORPHOS as the chiral ligand. This methodol. exhibits broad substrate scope, functional group tolerance with high enantioselectivity. A synthetic application of this method has been demonstrated.

Asian Journal of Organic Chemistry published new progress about 503538-69-0. 503538-69-0 belongs to dioxole, auxiliary class (Atropisomeric Bisphosphine Ligands, name is (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, and the molecular formula is C6H10N2, Computed Properties of 503538-69-0.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Lucciola, Daniela published the artcileFurther developments of an enantioselective palladium-catalyzed polyene cyclization: surprising solvent and ligand effects, Recommanded Product: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, the publication is Synlett (2011), 1618-1622, database is CAplus.

The enantioselectivity of a Pd-catalyzed domino Heck-Mizoroki cyclization is dramatically enhanced by ligand and solvent choice. Electron-deficient ligands such as (R)-DIFLUORPHOS gave I in %ee values ranging from 94% ee to >99% ee. EtOH was found to be superior to other solvents traditionally used in Heck-Mizoroki reactions, generally showing increases in enantioselectivity when compared to toluene. It is also shown that microwave heating accelerates the reaction in either solvent and allows for a longer catalyst lifetime without eroding the %ee.

Synlett published new progress about 503538-69-0. 503538-69-0 belongs to dioxole, auxiliary class (Atropisomeric Bisphosphine Ligands, name is (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole, and the molecular formula is C38H24F4O4P2, Recommanded Product: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Horio, T. published the artcileA potent attractant of zoospores of Aphanomyces cochlioides isolated from its host, Spinacia oleracea, HPLC of Formula: 110204-45-0, the publication is Experientia (1992), 48(4), 410-14, database is CAplus.

A highly potent attractant of zoospores of A. cochlioides, a causal fungus of the root rot disease of spinach (S. oleracea), was isolated from spinach roots, and its structure was determined by spectroscopic evidence and chem. synthesis as cochliophilin A (5-hydroxy-6,7-methylenedioxyflavone, I). A chromosorb particle prepared by soaking in I solution showed a potent attracting activity toward the zoospores using concentrations of I above 10^-9 or 10^-10 M.

Experientia published new progress about 110204-45-0. 110204-45-0 belongs to dioxole, auxiliary class Flavonoids, name is 9-Hydroxy-6-phenyl-8H-[1,3]dioxolo[4,5-g]chromen-8-one, and the molecular formula is C16H10O5, HPLC of Formula: 110204-45-0.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Salomaa, Pentti published the artcileHydrolysis of 1,3-dioxolane and its alkyl-substituted derivatives. I. Structural factors influencing the rates of hydrolysis of a series of methyl-substituted dioxolanes, Safety of 2,2,4-Trimethyl-1,3-dioxolane, the publication is Acta Chemica Scandinavica (1961), 871-8, database is CAplus.

The exptl. techniques for the rate studies were dilatometric, for dioxolane derivatives which carried one or two Me groups at the 2-position, and titrimetric, for those derivatives that did not carry substituents at the 2-position. Based on the magnitude of the activation entropies, it was probable that the dioxolanes hydrolyzed by essentially the same mechanism as acyclic acetals. The introduction of a methyl group at the 2-position increased the rate of hydrolysis of dioxolanes by a factor of 10³-10⁴, primarily due to low activation energies. A second Me group at the 2-position increased the rate by another power of 10. The addition of one or more Me groups as substituents at the 4- and 5-position had a more complex influence on the rate of hydrolysis, most likely because of interaction of steric strain and polar effects. The polar factors involved were similar to those observed in acyclic acetals. The steric strain considerations which involved the partial 2,3-double bond after proton uptake at the 1-position also permitted distinguishing between cis- and trans-2,4-dimethyl-1,3-dioxolane, the cis form hydrolyzing about 4 times faster than the trans form.

Acta Chemica Scandinavica published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Safety of 2,2,4-Trimethyl-1,3-dioxolane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Maruyama, Kazuya published the artcileAlternating Cationic Copolymerization of Vinyl Ethers and Aryl-Substituted Cyclic Acetals: Structural Investigation of Effects of Cyclic Acetals on Copolymerizability, Application In Synthesis of 177-10-6, the publication is Macromolecules (Washington, DC, United States) (2022), 55(10), 4034-4045, database is CAplus.

The effects of the structural difference of cyclic acetals were investigated in the cationic copolymerization with vinyl monomers via the concurrent vinyl-addition and ring-opening mechanisms. A series of alkyl- and aryl-substituted cyclic acetals were successfully copolymerized with 2-chloroethyl vinyl ether (CEVE) under appropriate conditions. In particular, copolymerization of an aryl-substituted 2-(4-methoxyphenyl)-1,3-dioxolane (PMPDOL) with CEVE involved exclusive crossover reactions between PMPDOL and CEVE, resulting in alternating copolymers. Copolymerization of PMPDOL and other vinyl ethers and styrene derivatives also proceeded via the frequent crossover reactions, while the copolymerization of 2-methyl-1,3-dioxolane, a methyl-substituted counterpart of PMPDOL, with vinyl monomers except for CEVE proceeded negligibly. The difference in the substituents of cyclic acetals significantly affected the electronic and steric environments around the carbocation generated in the propagation reaction, which is related to the frequency of the crossover reaction. Acid hydrolysis of alternating copolymers resulted in complete degradation and selective generation of a single compound due to the periodic incorporation of acetal structures in the main chains, which supported the well-defined structure of copolymers. The monomer reactivity ratios were also consistent with the copolymerizability difference between the aryl- and alkyl-substituted cyclic acetals. The structure-polymerizability relationship of cyclic acetals in the copolymerization was discussed based on the reaction mechanism during the propagating reaction.

Macromolecules (Washington, DC, United States) published new progress about 177-10-6. 177-10-6 belongs to dioxole, auxiliary class Dioxolane,Spiro, name is 1,4-Dioxaspiro[4.5]decane, and the molecular formula is C8H14O2, Application In Synthesis of 177-10-6.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem

Maruyama, Kazuya published the artcileAlternating Cationic Copolymerization of Vinyl Ethers and Aryl-Substituted Cyclic Acetals: Structural Investigation of Effects of Cyclic Acetals on Copolymerizability, Recommanded Product: 2,2,4-Trimethyl-1,3-dioxolane, the publication is Macromolecules (Washington, DC, United States) (2022), 55(10), 4034-4045, database is CAplus.

The effects of the structural difference of cyclic acetals were investigated in the cationic copolymerization with vinyl monomers via the concurrent vinyl-addition and ring-opening mechanisms. A series of alkyl- and aryl-substituted cyclic acetals were successfully copolymerized with 2-chloroethyl vinyl ether (CEVE) under appropriate conditions. In particular, copolymerization of an aryl-substituted 2-(4-methoxyphenyl)-1,3-dioxolane (PMPDOL) with CEVE involved exclusive crossover reactions between PMPDOL and CEVE, resulting in alternating copolymers. Copolymerization of PMPDOL and other vinyl ethers and styrene derivatives also proceeded via the frequent crossover reactions, while the copolymerization of 2-methyl-1,3-dioxolane, a methyl-substituted counterpart of PMPDOL, with vinyl monomers except for CEVE proceeded negligibly. The difference in the substituents of cyclic acetals significantly affected the electronic and steric environments around the carbocation generated in the propagation reaction, which is related to the frequency of the crossover reaction. Acid hydrolysis of alternating copolymers resulted in complete degradation and selective generation of a single compound due to the periodic incorporation of acetal structures in the main chains, which supported the well-defined structure of copolymers. The monomer reactivity ratios were also consistent with the copolymerizability difference between the aryl- and alkyl-substituted cyclic acetals. The structure-polymerizability relationship of cyclic acetals in the copolymerization was discussed based on the reaction mechanism during the propagating reaction.

Macromolecules (Washington, DC, United States) published new progress about 1193-11-9. 1193-11-9 belongs to dioxole, auxiliary class Dioxolanes, name is 2,2,4-Trimethyl-1,3-dioxolane, and the molecular formula is C6H12O2, Recommanded Product: 2,2,4-Trimethyl-1,3-dioxolane.

Referemce:
https://en.wikipedia.org/wiki/1,3-Benzodioxole,
Dioxole | C3H4O2 – PubChem