Boron-Promoted Deprotonative Conjugate Addition: Geminal Diborons as Soft Pronucleophiles and Acyl Anion Equivalents.
Boron-Promoted Deprotonative Conjugate Addition: Geminal Diborons as Soft Pronucleophiles and Acyl Anion Equivalents.
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硼龙促进的去质子缀合物的添加:Geminal Diborons作为软核寄移剂和酰基阴离子等效物。
DOI:
10.1021/acs.joc.2c00914
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发表时间:
2022-08-05
期刊:
影响因子:
--
通讯作者:
Sharma A
中科院分区:
文献类型:
--
作者:
Wang L;Lin S;Santos E;Pralat J;Spotton K;Sharma A
Conjugate addition of α-boron stabilized carbanions is an underexplored reaction modality. Existing methods require deborylation of geminal di/triboryl alkanes and/or the presence of additional activating groups. We report the 1,4-addition of α,α-diboryl carbanions generated via deprotonation of corresponding geminal diborons. The methodology provided a general route to highly substituted and synthetically useful γ,γ-diboryl ketones. The development of geminal diborons as soft pronucleophiles also enabled their use as acyl anion equivalents via one-pot tandem conjugate addition-oxidation sequence.
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