Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Ji-Yuan Du"'
Publikováno v:
Organic & Biomolecular Chemistry. 21:4191-4194
Efficient copper-catalyzed [3 + 2] cycloadditions of ethynyl indoloxazolidones with 1,3-cyclohexanediones to access functionalized furan derivatives under mild conditions.
Autor:
Hong-Li Huang, Juan Xu, Ya-Xin Fan, Qing-Qiang Su, Ji-Yuan Du, Ru-Fen Zhang, Yan-lan Wang, Honggang Hu, Fei Gao
Publikováno v:
The Journal of Organic Chemistry. 87:14093-14102
The visible-light-promoted difunctionalization of alkenyl ketones has been developed for easy access of various tetralones, cyclopropane, or alkenyl migration compounds. With
Controlling absolute stereochemistry in catalytic photochemical reactions is generally challenging owing to high rates of background reactivity. Successful strategies broadly rely on selective excitation of the reaction substrate when associated with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ef175e84c475643b6e2ffa4007e59c7b
https://doi.org/10.1021/jacs.2c09267
https://doi.org/10.1021/jacs.2c09267
Autor:
Ruo-Nan Wang, Yan-Hua Ma, Qing-Qiang Su, Ya-Xin Fan, Yong-Zheng Lv, Xiang-Zhi Zhang, Yan-Lan Wang, Hong-Li Huang, Ji-Yuan Du
Publikováno v:
Organic Chemistry Frontiers. 9:3301-3306
An acid-catalyzed formal [3 + 2] cyclization/N,O-ketalization of in situ formed ortho-alkynyl quinone methides (o-AQMs) and tryptophol derivatives was developed.
Controlling absolute stereochemistry in catalytic photochemical reactions is generally challenging owing to high rates of background reactivity. Successful strategies broadly rely on selective excitation of the reaction substrate when associated with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef9da61ab07fd7244147665549c996d8
https://doi.org/10.26434/chemrxiv-2022-dnzbk
https://doi.org/10.26434/chemrxiv-2022-dnzbk
Publikováno v:
Synthesis. 54:499-505
Herein, we present a palladium-catalyzed tandem [4+1] cycloaddition of 4-vinyl-1,4-dihydro-2H-3,1-benzoxazin-2-ones with N-tosylhydrazones. The reaction is accomplished by merging the in situ generated aza-ortho-quinone methides (aza-o-QMs) wit
Autor:
Xue-Tao Xu, Ai-Jun Ma, Zong-Wang Qiu, Jin-Bao Peng, Zhen-Sheng Jia, Na Feng, Ji-Yuan Du, Xiang-Zhi Zhang, Bao Qiong Li, Han-Peng Pan
Publikováno v:
The Journal of Organic Chemistry. 86:6075-6089
Herein, we describe a highly effective 1,8-conjugate-addition-mediated formal (3+3)-annulation of (aza)-para-quinone methides in situ generated from propargylic alcohols with 4-hydroxycoumarins and 1,3-dicarbonyl compounds under the catalysis of a Br
Autor:
Ai-Jun Ma, Bao Qiong Li, Han-Peng Pan, Na Feng, Xue-Tao Xu, Ji-Yuan Du, Jin-Bao Peng, Zong-Wang Qiu, Xiang-Zhi Zhang
Publikováno v:
The Journal of Organic Chemistry. 85:13306-13316
Herein, we report an efficient Bronsted acid-catalyzed formal (3+3)-annulation of (aza)-para-quinone methides generated in situ from propargylic alcohols with naphthol derivatives, which involves a 1,8-conjugate addition/6-endo annulation process. Th
Synthesis of Pyrrolo[1,2-a]indoles via (3+2)-Annulations of (Aza)-para-Quinone Methides with Indoles
Autor:
Peng-Jin Bao, Ai-Jun Ma, Wen Guihua, Bao Qiong Li, Zong-Wang Qiu, Ji-Yuan Du, Xiang-Zhi Zhang, Xue-Tao Xu, Na Feng
Publikováno v:
Synthesis. 52:3640-3649
An efficient and straightforward Brønsted acid mediated (3+2)-annulation of (aza)-para-quinone methides, generated in situ from propargylic alcohols and indoles, has been developed involving 1,8-conjugate addition/5-endo annulation cascade. This pro
Autor:
Zong-Wang Qiu, Ai-Jun Ma, Na Feng, Bao Qiong Li, Jin-Bao Peng, Ji-Yuan Du, Xiang-Zhi Zhang, Xue-Tao Xu, Han-Peng Pan
Publikováno v:
Organic Letters. 22:1903-1907
An efficient and straightforward Lewis-acid-mediated stereoselective (4 + 3)-cyclization of indole-substituted alkylidene malonates and donor-acceptor cyclopropanes has been developed involving the Friedel-Crafts/Michael addition cyclization cascade.