Výsledky vyhledávání - "Chuan-wen Lei"

Asymmetric Formal (3 + 2) Cyclocondensation of Coumarin-3-Formylpyrazoles as 3-Carbon Partners with 3-Hydroxyoxindoles via Esterification/Michael Addition Sequence

Autor: Shi-Jie Zhu, Zhi-Feng Hao, Ya Pan, Ying Zhou, Xiong-Li Liu, Ming Zhang, Chuan-Wen Lei

Publikováno v: The Journal of Organic Chemistry. 87:15210-15223

The first enantioselective formal (3 + 2) cyclocondensation involving α,β-unsaturated pyrazoleamides as 3-carbon partners was accomplished in a stepwise fashion. The stepwise esterification/Michael addition sequence is promoted by Zn(OTf)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c33ac15a5cc5224c56d6eb9f5241125
https://doi.org/10.1021/acs.joc.2c01757

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Autor: Chuan-Wen, Lei, Xi-Yu, Wang, Bo-Shuai, Mu, Jin-Sheng, Yu, Ying, Zhou, Jian, Zhou

Publikováno v: Organic letters. 24(45)

An unprecedented tandem trifluoromethylsilylation/intramolecular S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::c430692b66abce3b43e7d445b98c2cde
https://pubmed.ncbi.nlm.nih.gov/36318643

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Synthesis and crystal structure of 8-bromo-3-(1H-pyrazole-1-carbonyl)-2H-chromen-2-one, C13H7BrN2O3

Autor: Zhi-Feng Hao, Shi-Jie Zhu, Chuan-Wen Lei, Ying Zhou

Publikováno v: Zeitschrift für Kristallographie - New Crystal Structures. 238:221-222

C13H7BrN2O3, triclinic, P 1 ‾ $\overline{1}$ (no. 2), a = 7.2968(6) Å, b = 7.6743(6) Å, c = 11.5698(12) Å, α = 77.255(8)°, β = 73.573(8)°, γ = 73.509(7)°, V = 588.90(10) Å3, Z = 2, R gt (F) = 0.0459, wR ref (F 2) = 0.1089, T = 220 K.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::18dbf949ca6ebefde80fd9ddfb63c06a
https://doi.org/10.1515/ncrs-2022-0561

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Enantioselective Synthesis of Bispiro[indanedione-oxindole-cyclopropane]s through Organocatalytic [2+1] Cycloaddition

Autor: Zhi-Feng Hao, Shi-Jie Zhu, Yong-Jia Hao, Wen-Hui Zhang, Ying Zhou, You-Ping Tian, Chuan-Wen Lei

Publikováno v: The Journal of Organic Chemistry.

A series of compounds featuring a novel bispiro[indanedione-oxindole-cyclopropane] moiety have been synthesized through a squaramide-catalyzed [2+1] cycloaddition reaction. The tandem Michael-alkylation reaction of 2-arylidene-1,3-indanediones with 3

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d237b9d924ba2c1888482d8c70ab9fa
https://doi.org/10.1021/acs.joc.2c01009

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Organocatalytic Asymmetric Cyclopropanation of 3-Acylcoumarins with 3-Halooxindoles: Access to Spirooxindole-cyclopropa[c]coumarin Compounds

Autor: Jian-Qiang Zhao, Chuan-Wen Lei, Zhen-Hua Wang, Wei-Cheng Yuan, Yong You

Publikováno v: The Journal of Organic Chemistry. 86:2534-2544

A highly diastereo- and enantioselective cyclopropanation reaction of 3-acylcoumarins with 3-halooxindoles catalyzed by an organocatalyst through a [2 + 1] Michael/intramolecular cyclization process was developed. This scenario provides a facile stra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::28c850a1b964d54a7da9daee11aca1c6
https://doi.org/10.1021/acs.joc.0c02653

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Organocatalytic enantioselective reactions involving prochiral carbocationic intermediates

Autor: Bo-Shuai Mu, Ying Zhou, Jin-Sheng Yu, Chuan-Wen Lei, Feng Zhou, Jian Zhou

Publikováno v: Chemical Communications. 57:9178-9191

Since the discovery of carbocations in 1901, the past 120 years have witnessed many marvelous advances in the chemistry of carbocations. The state-of-the-art research in this field is to overcome the intrinsic instability and high reactivity of the p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d494664948a0b43c4720872dc35a367
https://doi.org/10.1039/d1cc03506a

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