Category: 1265884-98-7

Name: 5-(11bR)-Dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl-5H-dibenz[b,f]azepine. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four 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 Synthesis of C5-Allylindoles through an Iridium-Catalyzed Asymmetric Allylic Substitution/Oxidation Reaction Sequence of N-Alkyl Indolines. Author is Lu, Jiamin; Xu, Ruigang; Zeng, Haixia; Zhong, Guofu; Wang, Meifang; Ni, Zhigang; Zeng, Xiaofei.

Iridium/Bronsted acid cooperative catalyzed asym. allylic substitution reactions at the C5 position of indolines I (R = Bn, PMB; R1 = 2-Me, 2-Ph, 2,3-(Me)2, etc.) have been reported for the first time. The highly efficient protocol allows rapid access to various C5-allylated products (R/S)-II (Ar = C6H5, 2-BrC6H4, 2-naphthyl, etc.) and III in good to high yields (48-97%) and enantioselectivities (82% to >99% ee) with wide functional group tolerance. The transformations allow not only the formation of C5-allylindoline derivatives II but also the synthesis of C5-allylindoles III in good yields and excellent stereoselectivities via an allylation/oxidation reaction sequence.

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

Category: dioxole. 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: 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 Coordination-Induced Stereocontrol over Carbocations: Asymmetric Reductive Deoxygenation of Racemic Tertiary Alcohols.

The inherent difficulty in eliciting facial control over carbocations has limited their utility as intermediates in asym. catalysis. We have now shown that a docking strategy involving the reversible coordination of a substrate to a chiral transition-metal catalyst can be used to enable highly stereoselective nucleophilic attack on intermediate tertiary carbocations. This approach has been implemented to achieve the first example of enantioselective reductive deoxygenation of tertiary alcs. This reduction occurs with high enantio- (up to 96% ee) and regioselectivity (up to >50:1 rr) by applying a novel Hantzsch ester analog as a convenient hydride source. In-depth mechanistic studies support the involvement of a tertiary carbocation that is coordinated to the iridium metal center via the key allene moiety.

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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 (R)-1,1′-Bi-2,2′-naphthol, the main research direction is review binaphthol preparation chiral ligand auxiliary addition Ullmann cyclization.SDS of cas: 1265884-98-7.

A review. Synthesis, properties and applications of (R)-1,1′-bi-2,2′-naphthol, its enantiomer and their derivatives as chiral ligands and auxiliaries in asym. organic synthesis are reviewed. The reactions discussed include hydrocarboxylation, polymerization, Ullmann coupling, cyanosilylation, Diels-Alder cycloaddition and other reactions.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. 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 ) is researched.Related Products of 1265884-98-7.Han, Min; Yang, Min; Wu, Rui; Li, Yang; Jia, Tao; Gao, Yuanji; Ni, Hai-Liang; Hu, Ping; Wang, Bi-Qin; Cao, Peng published the article 《Highly Enantioselective Iridium-Catalyzed Coupling Reaction of Vinyl Azides and Racemic Allylic Carbonates》 about this compound( cas:1265884-98-7 ) in Journal of the American Chemical Society. Keywords: enantioselective iridium catalyst coupling reaction vinyl azide allylic carbonate; amide nitrile stereoselective preparation. Let’s learn more about this compound (cas:1265884-98-7).

The iridium-catalyzed enantioselective coupling reaction of vinyl azides and allylic electrophiles is presented and provides access to β-chiral carbonyl derivatives Vinyl azides are used as acetamide enolate or acetonitrile carbanion surrogates, leading to γ,δ-unsaturated β-substituted amides as well as nitriles with excellent enantiomeric excess. These products are readily transformed into chiral N-containing building blocks and pharmaceuticals. A mechanism is proposed to rationalize the chemoselectivity of this coupling reaction.

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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 Direct enantioselective allylic substitution of 4-hydroxycoumarin derivatives with branched allylic alcohols via iridium catalysis, the main research direction is hydroxy arylallyl chromenone preparation enantioselective; hydroxycoumarin alc allylic substitution iridium catalyst.Electric Literature of C34H22NO2P.

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

COA of Formula: C34H22NO2P. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. 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 Enantio- and Diastereoselective Spiroketalization Catalyzed by Chiral Iridium Complex. Author is Hamilton, James Y.; Rossler, Simon L.; Carreira, Erick M..

In the presence of [Ir(cod)Cl]2 and a nonracemic dibenzazepinyl dinaphthodioxaphosphepine ligand, hydroxy ketone-containing allylic carbonates such as I (Boc = t-BuO2C) underwent distereoselective and enantioselective spiroketalization reactions to yield spiroketals such as II in 62-99% yields, 1.2:1->25:1 dr (the diastereoselectivity of the 1.2:1 dr reaction was improved to >25:1 dr on equilibration with acid), and in 94:6->99:1 er. The protocol was effective for the preparation of a collection of spiroketals of various ring sizes and substituents, including heteroatoms, with high enantio- and diastereoselectivity. Furthermore, the enantio- and diastereoselective spiroketalization was used in tandem with an acetalization reaction and a second spiroketalization reaction to exert concomitant stereocontrol over addnl. stereogenic centers. The structure of a nonracemic spiropyranpyrrolopyran was determined by X-ray crystallog.

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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 Iridium-catalyzed C3-selective asymmetric allylation of 7-azaindoles with secondary allylic alcohols, the main research direction is azaindole secondary allylic alc iridium catalyst allylation; aryl allyl pyrrolopyridine preparation enantioselective regioselective.Related Products of 1265884-98-7.

Iridium-catalyzed C3-selective asym. allylation of 7-azaindoles with racemic secondary allylic alcs. to give only branched allylation products in good to high yields with high enantioselectivity (up to >99.5% ee) was reported. Allylic alcs. and 7-azaindoles with a variety of functional groups including halogen and heteroaromatic groups were compatible with the reaction conditions. Furthermore, transformations of the obtained allylation products were demonstrated without a significant loss of enantiomeric excess.

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

Sempere, Yeshua; Alfke, Jan L.; Roessler, Simon L.; Carreira, Erick M. published the article 《Morpholine Ketene Aminal as Amide Enolate Surrogate in Iridium-Catalyzed Asymmetric Allylic Alkylation》. Keywords: morpholine ketene aminal amide enolate surrogate asym allylic alkylation; iridium catalyzed asym allylic alkylation morpholine ketene aminal; alkylation; allylation; amides; enantioselectivity; iridium.They researched 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 ).Electric Literature of C34H22NO2P. 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:1265884-98-7) here.

Morpholine ketene aminal is employed in iridium-catalyzed asym. allylic alkylation reactions as a surrogate for amide enolates to prepare γ,δ-unsaturated β-substituted morpholine amides. Kinetic resolution or, alternatively, stereospecific substitution affords the corresponding products in high enantiomeric excess [e.g., (±)-I + II → (R)-III + (S)-I]. The utility of the products generated by this method has been showcased by their further elaboration into amines, ketones, or acyl silanes. A putative catalytic intermediate (η3-allyl)iridium(III) with achiral P,olefin-ligand was synthesized and characterized for the first time.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. 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 ) is researched.Formula: C34H22NO2P.Jiang, Shi-Zhi; Zeng, Xue-Yi; Liang, Xiao; Lei, Ting; Wei, Kun; Yang, Yu-Rong published the article 《Iridium-Catalyzed Enantioselective Indole Cyclization: Application to the Total Synthesis and Absolute Stereochemical Assignment of (-)-Aspidophylline A》 about this compound( cas:1265884-98-7 ) in Angewandte Chemie, International Edition. Keywords: iridium catalyzed enantioselective indole cyclization aspidophylline A synthesis; absolute configuration aspidophylline A; enantioselective indole allylic alkylation iminium cyclization cascade; cyclizations; enantioselectivity; indoles; iridium; total synthesis. Let’s learn more about this compound (cas:1265884-98-7).

The first enantioselective total synthesis of (-)-aspidophylline A (I), including assignment of its absolute configuration has been accomplished. A key element of the synthesis is a highly enantioselective indole allylic alkylation/iminium cyclization cascade which was developed by employing a combination of Lewis acid activation and an iridium/ligand catalyst. This strategy relies on the direct use of 2,3-disubstituted indoles with secondary allylic alcs. appended at C2 and heteronucleophiles appended at C3, indoles which are easily prepared from simple starting materials under C-H activation conditions.

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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 Iridium-catalyzed enantioselective allylic vinylation with potassium alkenyltrifluoroborates, the main research direction is naphthalene chiral phenylpentadienyl preparation; propenol naphthalenyl enantioselective allylic vinylation styryltrifluoroborate iridium catalyst.Synthetic Route of C34H22NO2P.

The three-step preparation of chiral naphthalene I via the iridium-catalyzed enantioselective allylic vinylation of 1-(naphthalen-2-yl)prop-2-en-1-ol with potassium (E)-styryltrifluoroborate was described.

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