Effect of butterfly-shaped sulfur-bridged ligand and counter anions on the catalytic activity and diastereoselectivity of organobismuth complexes

R Qiu, S Yin, X Song, Z Meng, Y Qiu, N Tan, X Xu…

文献索引：Qiu, Renhua; Yin, Shuangfeng; Song, Xingxing; Meng, Zhengong; Qiu, Yimiao; Tan, Nianyuan; Xu, Xinhua; Luo, Shenglian; Dai, Feng-Rong; Au, Chak-Tong; Wong, Wai-Yeung Dalton Transactions, 2011 , vol. 40, # 37 p. 9482 - 9489

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被引用次数: 19

摘要

In the direct Mannich reaction and synthesis of α, β-unsaturated ketones, the use of organobismuth complexes as catalysts leads to high diastereoselectivity and products of single trans conformation. In this paper, we illustrate the relationship between structure and catalytic activity as well as diastereoselectivity of organobismuth complexes having a 5, 6, 7, 12-tetrahydrodibenz [c, f][1, 5] thiobismocine framework as well as bearing a butterfly- ...