排序方式: 共有75条查询结果,搜索用时 15 毫秒
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Wu Li Zhengli Duan Xueye Zhang Heng Zhang Mengfan Wang Ru Jiang Hongyao Zeng Chao Liu Aiwen Lei 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2015,127(6):1913-1916
A novel palladium‐catalyzed C H double carbonylation introduces two adjacent carbonyl groups for the synthesis of isatins from readily available anilines. The reaction proceeds under atmospheric pressure of CO with high regioselectivity and without any additives. Density functional theory investigations indicate that the palladium‐catalyzed double carbonylation catalytic cycle is plausible. 相似文献
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Jiawang Liu Ji Yang Francesco Ferretti Ralf Jackstell Matthias Beller 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(14):4738-4742
The first catalyst for the alkoxycarbonylation of gem‐difluoroalkenes is described. This novel catalytic transformation proceeds in the presence of Pd(acac)2/1,2‐bis((di‐tert‐butylphosphan‐yl)methyl)benzene (btbpx) ( L4 ) and allows for an efficient and straightforward access to a range of difluoromethylated esters in high yields and regioselectivities. The synthetic utility of the protocol is showcased in the practical synthesis of a Cyclandelate analogue using this methodology as the key step. 相似文献
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