Phase-Transfer-Catalyzed Alkylation of Hydantoins

被引:12
作者
Keenan, Thomas [1 ]
Jean, Alexandre [2 ]
Arseniyadis, Stellios [1 ]
机构
[1] Queen Mary Univ London, Dept Chem, London E1 4NS, England
[2] Ctr Ind Res, Oril Ind, F-76210 Bolbec, France
来源
ACS ORGANIC & INORGANIC AU | 2022年 / 2卷 / 04期
关键词
phase-transfer catalysis; hydantoins; alkylation; allylation; propargylation; Michael addition; ALPHA-AMINO; DERIVATIVES; CHEMISTRY; ARYLATION;
D O I
10.1021/acsorginorgau.1c00058
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A highly efficient, cost-effective, and environmentally friendly protocol is reported for the C5-selective alkylation of hydantoins under phase-transfer catalysis. The reactions are scalable and only require a catalytic amount of tetrabutylammonium bromide (TBAB) to achieve high yields under mild reaction conditions. Moreover, the method is applicable to a wide range of electrophiles, including alkyl-, allyl-, propargyl-, and benzyl halides, as well as acrylates and dibromoalkanes, but also to virtually any hydantoin precursor. We also highlight the potential for an enantioselective adaptation using a chiral phase-transfer catalyst.
引用
收藏
页码:312 / 317
页数:6
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