Tag: M.W=500-600

SDS of cas: 1265884-98-7. 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: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine, is researched, Molecular C34H22NO2P, CAS is 1265884-98-7, about Ir-Catalyzed Enantioconvergent Synthesis of Diversely Protected Allenylic Amines Employing Ammonia Surrogates. Author is Glatz, Fabian; Petrone, David A.; Carreira, Erick M..

The first iridium catalyzed, enantioconvergent amination of allenylic carbonates is reported. This process utilizes various com. available carbamates and sulfonamides to generate allenylic amines including commonly employed protected groups (Boc, Fmoc, Cbz, Ts, Ns) in 62-82% yield and 87-98% ee. The products generated through this scalable procedure serve as effective linchpins for the rapid, enantiospecific synthesis of a wide range of complex structures.

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

Name: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine. 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: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine, is researched, Molecular C34H22NO2P, CAS is 1265884-98-7, about Allenylic Carbonates in Enantioselective Iridium-Catalyzed Alkylations. Author is Petrone, David A.; Isomura, Mayuko; Franzoni, Ivan; Rossler, Simon L.; Carreira, Erick M..

An enantioconvergent C(sp3)-C(sp3) coupling between racemic allenylic electrophiles and alkylzinc reagents has been developed. An Ir/(phosphoramidite,olefin) catalyst provides access to highly enantioenriched allenylic substitution products (93-99% ee) with complete regiocontrol (>50:1 rr in all cases) over the undesired 1,3-dienes isomers which are obtained predominantly in the case of other metal catalysts. The synthetic utility of the products obtained was highlighted in a variety of stereoselective transition metal-catalyzed difunctionalization reactions. Furthermore, a combination of computational and exptl. studies supports a putative reaction mechanism wherein enantiodetermining C-C coupling occurs via nucleophilic attack on a highly planarized aryl butadienyl π-system that is coordinated to the Ir center in an η2-fashion.

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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: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine(SMILESS: N1(P2OC3=CC=C4C=CC=CC4=C3C5=C6C=CC=CC6=CC=C5O2)C7=CC=CC=C7C=CC8=CC=CC=C81,cas:1265884-98-7) is researched.Recommanded Product: 707-61-9. The article 《Silver-Assisted, Iridium-Catalyzed Allylation of Bis[(pinacolato)boryl]methane Allows the Synthesis of Enantioenriched Homoallylic Organoboronic Esters》 in relation to this compound, is published in ACS Catalysis. Let’s take a look at the latest research on this compound (cas:1265884-98-7).

Described here is an enantioselective approach of making chiral, β-substituted homoallylic organoboronic esters. In the presence of LiOtBu and a catalytic amount of Ag salt, com. bis[(pinacolato)boryl]methane participated in the Ir-catalyzed asym. allylation reactions, delivered a CH2B(pin) group, and yielded the title compounds from allylic carbonates. The synthetic utility of the prepared chiral organoboronates was demonstrated by their conversion to other important classes of compounds

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Reference:
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: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine(SMILESS: N1(P2OC3=CC=C4C=CC=CC4=C3C5=C6C=CC=CC6=CC=C5O2)C7=CC=CC=C7C=CC8=CC=CC=C81,cas:1265884-98-7) is researched.Application In Synthesis of 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine. The article 《Diastereo- and Enantioselective Synthesis of Borylated 3-Hydroxyoxindoles by Addition of gem-Diborylalkanes to Isatins》 in relation to this compound, is published in Organic Letters. Let’s take a look at the latest research on this compound (cas:1265884-98-7).

The catalytic asym. synthesis of borylated 3-hydroxyoxindoles by addition of gem-diborylalkanes to isatins is disclosed. Chiral 3-hydroxyoxindoles bearing two contiguous stereogenic centers were produced in up to >20:1 dr and 99% ee. The synthetic utility of the corresponding products is presented through several transformations of the boryl moiety. This report provides an efficient strategy to incorporate a boryl functional group toward the synthesis of 3-hydroxyoxindoles.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Trimethyl Orthoacetate and Ethylene Glycol Mono-Vinyl Ether as Enolate Surrogates in Enantioselective Iridium-Catalyzed Allylation, published in 2018, which mentions a compound: 1265884-98-7, mainly applied to trimethyl orthoacetate allylic carbonate iridium catalyst enantioselective allylation; unsaturated ester stereoselective preparation; ethyleneglycol vinyl ether allylic carbonate iridium catalyst enantioselective allylation; protected aldehyde stereoselective preparation; conical formal enantioselective synthesis; allylation; asymmetric catalysis; iridium; total synthesis; trimethyl orthoacetate, SDS of cas: 1265884-98-7.

Tri-Me orthoacetate and ethylene glycol mono-vinyl ether are employed in iridium-catalyzed enantioselective allylation reactions. The method documented enables their convenient use as surrogates for silyl ketene acetals and silyl enol ethers to prepare γ,δ-unsaturated esters and protected aldehydes with excellent enantioselectivity. The utility of this novel method has been demonstrated by its implementation in a formal enantioselective synthesis of the meroterpenoid (+)-conicol.

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

Application In Synthesis of 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine. 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: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine, is researched, Molecular C34H22NO2P, CAS is 1265884-98-7, about Enantioselective Dearomatization of Naphthol Derivatives with Allylic Alcohols by Cooperative Iridium and Bronsted Acid Catalysis. Author is Shen, Dan; Chen, Qiliang; Yan, Peipei; Zeng, Xiaofei; Zhong, Guofu.

The combination of a transition-metal catalyst and organocatalyst was designed to achieve a highly enantioselective system for the allylic dearomatization reaction of naphthols with racemic secondary allylic alcs. The desired β-naphthalenones, bearing an all-carbon quaternary center, were obtained in good yields with high chemo- and enantioselectivities. The cooperative catalytic system, involving a chiral iridium complex and phosphoric acid, provided measurable improvements in yields, and chemo- and enantioselectivities relative to single-catalyst systems. Control experiments indicated that the chiral iridium complex functions as a key species in the control of the absolute configuration, thus enabling the formation of both β-naphthalenone enantiomers by simply employing opposite enantiomeric ligands.

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

Computed Properties of C34H22NO2P. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine, is researched, Molecular C34H22NO2P, CAS is 1265884-98-7, about Iridium Catalysed Asymmetric Allylic Substitution Reaction of Indolizine Derivatives. Author is Lu, Jiamin; Wang, Meifang; Xu, Ruigang; Sun, Haizhou; Zheng, Xuan; Zhong, Guofu; Zeng, Xiaofei.

A highly efficient direct asym. allylic substitution (AAS) reaction of indolizine derivatives with allylic alcs. for accessing enantioenriched indolizine derivatives were realized by combining a chiral iridium complex catalyst with Lewis acid under mild reaction conditions, delivered various chiral allylation products in remarkably high yields and excellent enantioselectivities. This protocol distinguishes itself by availability of the starting materials, mild reaction conditions, broad substrate scope, high yields, excellent selectivity and easy scale-up in a stereoselective manner, which provided a highly efficient protocol for chiral indolizines.

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

Liang, Xiao; Zhang, Tian-Yuan; Meng, Chun-Yan; Li, Xue-Dan; Wei, Kun; Yang, Yu-Rong published an article about the compound: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine( cas:1265884-98-7,SMILESS:N1(P2OC3=CC=C4C=CC=CC4=C3C5=C6C=CC=CC6=CC=C5O2)C7=CC=CC=C7C=CC8=CC=CC=C81 ).Synthetic Route of C34H22NO2P. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:1265884-98-7) through the article.

A synthetic strategy for the catalytic asym. total synthesis of (-)-actinophyllic acid is described. This highly efficient and enantioselective approach allows the rapid installation of the four contiguous chiral centers (C16, C15, C20, and C19) by way of a dual Ir/amine catalytic allylation of a 2-indolyl vinyl carbinol and an aldol reaction of the resultant chiral aldehyde (I) with 2-pyrrolidinone. The key indol-3-ylmethanamine moiety and 1-azabicyclo[4.2.1]nonane ring system were readily generated through a selective Mannich-like cyclization and an intramol. N-alkylation, resp.

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

SDS of cas: 1265884-98-7. 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: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine, is researched, Molecular C34H22NO2P, CAS is 1265884-98-7, about Direct enantioselective allylic substitution of 4-hydroxycoumarin derivatives with branched allylic alcohols via iridium catalysis. Author is Xu, Ruigang; Li, Kai; Wang, Jiaqi; Lu, Jiamin; Pan, Lina; Zeng, Xiaofei; Zhong, Guofu.

A highly efficient direct asym. allylic substitution (AAS) reaction of 4-hydroxycoumarin derivatives with branched allylic alcs. was realized by combining a chiral iridium complex catalyst with a Lewis acid under mild reaction conditions, delivering various hydroxy(arylallyl)-2H-chromen-2-ones I [R = H, 7-OMe, 6-Cl, etc.; Ar = Ph, 2-naphthyl, 2-thienyl, etc.; X = NMe, O, S] in remarkably high yields and excellent enantioselectivities. The salient features of this transformation included mild reaction conditions, general substrate scope, good functional group tolerance, high yields, excellent selectivities and easy scale-up. Furthermore, the obtained products were readily transformed into several kinds of bioactive compounds

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine, is researched, Molecular C34H22NO2P, CAS is 1265884-98-7, about Synergetic iridium and amine catalysis enables asymmetric [4+2] cycloadditions of vinyl aminoalcohols with carbonyls, the main research direction is dihydroquinolinone preparation enantioselective; vinyl aminoalc aldehyde cycloaddition iridium amine catalysis.Application of 1265884-98-7.

Catalytic asym. cycloadditions via transition-metal-containing dipolar intermediates are a powerful tool for synthesizing chiral heterocycles. However, within the field of palladium catalysis, compared with the well-developed normal electron-demand cycloadditions with electrophilic dipolarophiles, a general strategy for inverse electron-demand ones with nucleophilic dipolarophiles remains elusive, due to the inherent linear selectivity in the key palladium-catalyzed intermol. allylations. Herein, based on the switched regioselectivity of iridium-catalyzed allylations, two asym. [4+2] cycloadditions of vinyl aminoalcs. with aldehydes and β,γ-unsaturated ketones through synergetic iridium and amine catalysis were achieved. The activation of vinyl aminoalcs. by iridium catalysts and carbonyls by amine catalysts provide a foundation for the subsequent asym. [4+2] cycloadditions of the resulting iridium-containing 1,4-dipoles and (di)enamine dipolarophiles. The former provides a straightforward route to a diverse set of enantio-enriched hydroquinolines bearing chiral quaternary stereocenters, and the later represent an enantio- and diastereodivergent synthesis of chiral hydroquinolines.

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