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Your search keyword '"Liu, Shouxin"' showing total 14 results
Start Over Author "Liu, Shouxin" Journal organic letters
14 results on '"Liu, Shouxin"'

4. Stereoselective Dehydroxyboration of Allylic Alcohols to Access (E)-Allylboronates by a Combination of C–OH Cleavage and Boron Transfer under Iron Catalysis

Author

Su, Wei, primary, Wang, Ting-Ting, additional, Tian, Xia, additional, Han, Jian-Rong, additional, Zhen, Xiao-Li, additional, Fan, Shi-Ming, additional, You, Ya-Xin, additional, Zhang, Yu-Kun, additional, Qiao, Rui-Xiao, additional, Cheng, Qiushi, additional, and Liu, Shouxin, additional

Published
2021
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8. Asymmetric Formal Synthesis of (−)-Cephalotaxine via Palladium-Catalyzed Enantioselective Tsuji Allylation

Author

Zhang, Zhi-Wei, Wang, Cui-Cui, Xue, Hong, Dong, Yu, Yang, Jian-Hua, Liu, Shouxin, Liu, Wen-Qing, and Li, Wei-Dong Z.

Abstract

Asymmetric synthesis of the pentacyclic alkaloid (−)-cephalotaxine was accomplished via palladium-catalyzed enantioselective Tsuji allylation for construction of the aza-containing tetrasubstituted stereogenic center (95% yield, 93% ee). The allyl enol carbonate precursor was prepared from Hanaoka’s ketone intermediate, which was formed by a novel formic acid promoted ring-expansion reaction.

Published
2024
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9. Palladium-Catalyzed Selective γ-Monoarylation of Free Amines Containing Symmetric γ-C–H Controlled by a Transient Directing Group

Author

Dong, Sifan, Cai, Xinghao, Ma, Chen, Li, Haolong, Kang, Ying, Feng, Juan, Fan, Shiming, and Liu, Shouxin

Abstract

We developed a new transient directing group, N-(2-benzoyl-4-chlorophenyl)-1,1,1-trifluoromethanesulfonamide, which can facilitate the γ-monoarylation of free amines containing symmetric γ-C–H bonds. A variety of amines containing symmetric and identical γ-C(sp3)–H and γ-C(sp2)–H reacted with a diverse range of aryl and heteroaryl iodides to provide γ-monoarylated products exclusively.

Published
2024
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13. LiO t Bu-Promoted trans -Stereoselective and β-Regioselective Hydroboration of Propargyl Alcohols.

Author

Tian X, Zhang YK, You YX, Han JR, Cheng QS, Fan SM, Chen DD, Wang TT, Liu S, and Su W

Abstract

A convenient and efficient trans -stereoselective and β-regioselective hydroboration of propargyl alcohols was achieved simply with LiO t Bu as the base and (Bpin) 2 as the boron reagent in dimethyl sulfoxide at room temperature. Both terminal and internal propargyl alcohols with diverse structures and functional groups underwent the transformation smoothly to produce β-Bpin-substituted ( E )-allylic alcohols, of which the synthetic potentials were demonstrated by the downstream conversions of boronate, alkenyl, and hydroxyl groups.

Published
2023
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14. Asymmetric Formal Synthesis of (-)-Cephalotaxine via Palladium-Catalyzed Enantioselective Tsuji Allylation.

Author

Zhang ZW, Wang CC, Xue H, Dong Y, Yang JH, Liu S, Liu WQ, and Li WZ

Abstract

Asymmetric synthesis of the pentacyclic alkaloid (-)-cephalotaxine was accomplished via palladium-catalyzed enantioselective Tsuji allylation for construction of the aza-containing tetrasubstituted stereogenic center (95% yield, 93% ee). The allyl enol carbonate precursor was prepared from Hanaoka's ketone intermediate, which was formed by a novel formic acid promoted ring-expansion reaction.

Published
2018
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