a-Alkylation of ketimines using visible light photoredox catalysis

a-Alkylation of ketimines using visible light photoredox catalysis
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使用可见光光氧化还原催化酮亚胺的α-烷基化

DOI:
10.1039/c7ra09248b
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发表时间:
2017
期刊:
影响因子:
3.9
通讯作者:
Franchino A
Franchino A
中科院分区:
化学3区
文献类型:
--
作者:
Franchino A

文献摘要

相似文献

利用可见光光氧化还原催化,实现了N-二苯基膦酰酮亚胺与α-溴代羰基化合物的α-烷基化反应。反应在非常温和的条件下进行:在35 °C下,在蓝光照射(1 W)下,在叔胺和催化量的Ru-和Ni-基络合物的存在下,在20小时内。产物的化学选择性转化提供了获得1,4-二羰基化合物、受保护的GABA类似物和γ-内酰胺的途径。
A novel α-alkylation of N-diphenylphosphinoyl ketimines with α-bromocarbonyl compounds has been accomplished using visible light photoredox catalysis. The reaction proceeds under remarkably mild conditions: at 35 °C, in 20 hours, under blue light irradiation (1 W), in the presence of a tertiary amine and catalytic amounts of Ru- and Ni-based complexes. Chemoselective transformation of the products provides access to 1,4-dicarbonyl compounds, protected GABA analogues and γ-lactams.