Category: 707-61-9

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about A novel conversion of erythro phospholane epoxides to one-carbon atom homologated allylic alcohols.SDS of cas: 707-61-9.

A novel synthetic approach is described to incorporate one more C atom at C-2 position of phospholane oxides as homologated allylic alc. I by treatment of erythro-2,3-epoxy-3-methylphospholane 1-oxides, e.g., II (R = Ph, C6H4NO2-m, C6H4OMe-p, OMe, OEt, OPr-i), with excess of dimethylsulfonium methylide.

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Recommanded Product: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Convenient method for the reduction of the double-bond of cyclic vinylphosphine oxides using borane. Author is Keglevich, Gy.; Fekete, M.; Chuluunbaatar, T.; Dobo, A.; Bocskei, Zs.; Toke, L..

The electron poor double-bond of cyclic vinylphosphine oxides is easily reduced by borane in a selective manner to give the corresponding saturated derivatives E.g., 3-methyl-1-phenyl-2,3,4,5-tetrahydro-1H-phosphole 1-oxide was formed in 71% yield upon reduction of the double bond of 1-Ph dihydrophosphole with 2.2 equiv of Me2S-BH3. Under forcing conditions, change of the functionality may also take place.

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1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide(SMILESS: CC1=CP(CC1)(C2=CC=CC=C2)=O,cas:707-61-9) is researched.Synthetic Route of C4H7BrO2. The article 《Structure of isoprene-phenylphosphonous dihalide cyclo-adducts》 in relation to this compound, is published in Chemical Communications (London). Let’s take a look at the latest research on this compound (cas:707-61-9).

The cyclo-adduct of isoprene and PhPCl2, which gives 3-methyl-1-phenyl-2-phospholene oxide (I), b0.15 150°, on hydrolysis, was found to contain the 2 phospholene ring system. The PhPBr2 adduct contains the 3-phospholene ring system and gives 3-methyl-1-phenyl-3-phospholene oxide (II), b0.24 133-4°, on hydrolysis. The PhCH2Br salts of I and II m. 178-80° and 184-5°, resp.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Application of 707-61-9. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Synthesis and in vitro evaluation of 2,3-dibromo-3-methyl-1-phenylphospholane 1-oxide for potential anti-proliferative effects.

A novel phospha sugar analog, 2,3-dibromo-3-methyl-1-phenylphosphotane 1-oxide (DBMPP), was prepared from 1-phenyl-3-methyl-2-phospholene1-oxide and evaluated by in vitro MTT method for leukemia cells and microscopic observations for solid tumor cells, e.g., stomach cancer cells. The evaluation revealed clearly that the synthesized phospha sugar analog DBMPP has competent potentials and excellent anti-cancer activities that killed selectively and specifically the leukemia cells of cell lines of K562 and U937 but did not give any damages on healthy leukocyte. Moreover, it was revealed that DBMPP killed solid cancer cells such as stomach cancer cells and melanoma of cell lines of MKN45 and G361. Therefore, DBMPP should exert anti-proliferative effects for different kinds of tumor cells based on the in vitro evaluations. The cell cycle analyses by flow cytometry for K562 and U937 cells clearly demonstrated that the mechanism of the anti-proliferative effect on the human tumor cells is apoptosis induced by DBMPP.

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Reference:
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Otsuki, Toshihiro; Kakimoto, Masaaki; Imai, Yoshio published the article 《Synthesis and properties of multiblock copolymers based on polyoxyethylene and polyamides by diisocyanate method》. Keywords: polyoxyethylene polyamide multiblock copolymer; block polymerization polyoxyethylenedicarboxylic acid MDI diacid.They researched the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ).Related Products of 707-61-9. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:707-61-9) here.

Polyoxyethylene-polyamide multiblock copolymers were successfully synthesized from α,ω-poly(oxyethylene)dicarboxylic acid (I), a mixture of two dicarboxylic acids, and an aromatic diisocyanate by 2 synthetic routes, i.e., one-step and two-step methods. In the two-step method, α,ω-diisocyanate-terminated polyamide oligomers, preformed from a mixture of isophthalic acid (II) and azelaic acid (III) with 4,4′-MDI, were reacted with I to form multiblock copolymers. In the one-step method, the reaction components, MDI, II, III, and I, were reacted all together. These polymerizations were carried out in the presence of 3-methyl-1-phenyl-2-phospholene 1-oxide as a catalyst in tetramethylene sulfone, giving multiblock copolymers with inherent viscosities of 0.5-1.1 dL/g. The copolymers were soluble in amide-type solvents, and transparent, ductile, and elastomeric films could be cast from their N,N-dimethylacetamide solutions The tensile strength and modulus of the films thus prepared decreased with an increase in the polyoxyethylene content, whereas the elongation at break increased. The tensile strength, elongation at break, and tensile modulus of the multiblock copolymer films ranged from 47 MPa, 160%, and 1.1 GPa, resp., to 15 MPa, 880%, and 12 MPa, resp.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 707-61-9, is researched, SMILESS is CC1=CP(CC1)(C2=CC=CC=C2)=O, Molecular C11H13OPJournal, Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov’t, Journal of the American Chemical Society called Intermolecular Reductive C-N Cross Coupling of Nitroarenes and Boronic Acids by PIII/PV=O Catalysis, Author is Nykaza, Trevor V.; Cooper, Julian C.; Li, Gen; Mahieu, Nolwenn; Ramirez, Antonio; Luzung, Michael R.; Radosevich, Alexander T., the main research direction is nitroarene boronic acid reductive intermol cross coupling hexamethylphosphetane catalyst; arylamine preparation chemoselectivity.COA of Formula: C11H13OP.

A main group-catalyzed method for the synthesis of aryl- and heteroarylamines by intermol. C-N coupling is reported. The method employs a small-ring organophosphorus-based catalyst (1,2,2,3,4,4-hexamethylphosphetane) and a terminal hydrosilane reductant (phenylsilane) to drive reductive intermol. coupling of nitro(hetero)arenes with boronic acids. Applications to the construction of both Csp2-N (from arylboronic acids) and Csp3-N bonds (from alkylboronic acids) are demonstrated; the reaction is stereospecific with respect to Csp3-N bond formation. The method constitutes a new route from readily available building blocks to valuable nitrogen-containing products with complementarity in both scope and chemoselectivity to existing catalytic C-N coupling methods.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Otsuki, Toshihiro; Kakimoto, Masaaki; Imai, Yoshio researched the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ).Name: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide.They published the article 《Synthesis and properties of multiblock copolymers based on polyoxyethylene and polyamides by diisocyanate method》 about this compound( cas:707-61-9 ) in Journal of Applied Polymer Science. Keywords: polyoxyethylene polyamide multiblock copolymer; block polymerization polyoxyethylenedicarboxylic acid MDI diacid. We’ll tell you more about this compound (cas:707-61-9).

Polyoxyethylene-polyamide multiblock copolymers were successfully synthesized from α,ω-poly(oxyethylene)dicarboxylic acid (I), a mixture of two dicarboxylic acids, and an aromatic diisocyanate by 2 synthetic routes, i.e., one-step and two-step methods. In the two-step method, α,ω-diisocyanate-terminated polyamide oligomers, preformed from a mixture of isophthalic acid (II) and azelaic acid (III) with 4,4′-MDI, were reacted with I to form multiblock copolymers. In the one-step method, the reaction components, MDI, II, III, and I, were reacted all together. These polymerizations were carried out in the presence of 3-methyl-1-phenyl-2-phospholene 1-oxide as a catalyst in tetramethylene sulfone, giving multiblock copolymers with inherent viscosities of 0.5-1.1 dL/g. The copolymers were soluble in amide-type solvents, and transparent, ductile, and elastomeric films could be cast from their N,N-dimethylacetamide solutions The tensile strength and modulus of the films thus prepared decreased with an increase in the polyoxyethylene content, whereas the elongation at break increased. The tensile strength, elongation at break, and tensile modulus of the multiblock copolymer films ranged from 47 MPa, 160%, and 1.1 GPa, resp., to 15 MPa, 880%, and 12 MPa, resp.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Application of 707-61-9. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Catalytic transformation of silicon tetraisocyanate Si(NCO)4 to a polymeric silylcarbodiimide. Author is Schmidt, Carsten Ludwig; Jansen, Martin.

A new way for the preparation of inorganic polymeric carbodiimide-based networks is presented which resembles the transformation of mol. isocyanates using 1-phenyl-3-methyl-2-phospholene-1-oxide as a catalyst. The resp. reaction sequence, well established in preparative organic chem., has been applied for the synthesis of carbodiimide-based SiNC(O) materials. Starting from Si(NCO)4 (silicon tetraisocyanate), a transformation to an insoluble extended inorganic array was achieved in boiling dodecane (T = 216 °C). Anal. of the polymer using X-ray diffraction, FT-IR, d. measurement, matrix-assisted laser desorption/ionization time of flight and TGA revealed that this highly moisture-sensitive amorphous network consists of oligomers of high molar mass and exhibits a high d. of around 1.5 g.cm-3, which corresponds quite well to the calculated d. of crystalline Si(NCN)2 reported in the literature. Degradation of this ‘SiNC(O) phase’ with the release of N2 and (CN)2 finally provided SiC as the only crystalline product. No indication of the formation of crystalline Si3N4 or intermediate crystalline ‘SiC2N4’, silicon carbodiimide (= Si(NCN)2), was noticed. Copyright © 2012 John Wiley & Sons, Ltd.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

Safety of 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide, is researched, Molecular C11H13OP, CAS is 707-61-9, about Synthesis of Nitrogen-Containing Heterocycles and Cyclopentenone Derivatives via Phosphine-Catalyzed Michael Addition/Intramolecular Wittig Reaction. Author is Saleh, Nidal; Blanchard, Florent; Voituriez, Arnaud.

The phosphine-catalyzed Michael addition/intramol. Wittig reaction between dialkyl acetylenedicarboxylate and amino carboxaldehyde or amino ester has been developed. This reaction can be rendered catalytic in phosphine by the in situ chemoselective reduction of the phosphine oxide with a silane. This methodol. enables rapid access to a variety of nitrogen-containing heterocycles, which are present in numerous natural products and/or bioactive compounds Either classical heating or microwave conditions give access to the desired products in good yields (15 examples, 60-99% yields). This catalytic methodol. is further applicable to the synthesis of enantioenriched 1H-pyrrole derivatives, with the use of chiral phosphines. Finally, the reaction is extended to the synthesis of a polysubstituted cyclopentenone, starting from butane-2,3-dione as substrate.

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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Ikai, Koichi; Iida, Akihito; Yamashita, Mitsuji researched the compound: 4-Methyl-1-phenyl-2,3-dihydro-1H-phosphole 1-oxide( cas:707-61-9 ).Related Products of 707-61-9.They published the article 《Phospho sugars; novel preparation and their glycosyl compounds》 about this compound( cas:707-61-9 ) in Synthesis. Keywords: phospho sugar; phospholene oxide conversion phospho sugar; glycosyl phospho sugar. We’ll tell you more about this compound (cas:707-61-9).

Treatment of 1-phenyl-2-, and -3-phospholene 1-oxides with NBS affords 4-bromo-1-phenyl-2-phospholene 1-oxide (I). Substitution of the bromide with acetate, followed by stereoselective oxidation with osmium tetroxide and peracetylation with acetic anhydride/pyridine affords phospho sugar derivatives II of tetrafuranose. Furthermore, glycosyl compounds III (R = iodo, OAc, SCN, N3) of phospho sugars were prepared from 3-methyl-1-phenyl-2-phospholene 1-oxide by bromination and nucleophilic substitution reactions.

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1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem