α-Nitro carbonyl compounds in the synthesis of 2,3-dihydrofurans
摘要:
A new method for the synthesis of 2,3-dihydrofurans from readily available starting enones and alpha-nitro carbonyl compounds has been developed. This protocol can provide a novel and effective methodology for the preparation of 2,3-dihydrofurans in a stereoselective fashion. With 1,4-dien-3-ones, 2,3-dihydrofurans and cyclohexenecarboxylates were produced and high chemoselectivity was observed in different solvents. (C) 2008 Elsevier Ltd. All rights reserved.
α-Nitro carbonyl compounds in the synthesis of 2,3-dihydrofurans
作者:Che-Ping Chuang、Kuang-Po Chen、Yu-Lin Hsu、An-I. Tsai、Shui-Te Liu
DOI:10.1016/j.tet.2008.05.122
日期:2008.8
A new method for the synthesis of 2,3-dihydrofurans from readily available starting enones and alpha-nitro carbonyl compounds has been developed. This protocol can provide a novel and effective methodology for the preparation of 2,3-dihydrofurans in a stereoselective fashion. With 1,4-dien-3-ones, 2,3-dihydrofurans and cyclohexenecarboxylates were produced and high chemoselectivity was observed in different solvents. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of α-Nitro Carbonyls via Nitrations in Flow
作者:Anna Chentsova、Dmitry B. Ushakov、Peter H. Seeberger、Kerry Gilmore
DOI:10.1021/acs.joc.6b01634
日期:2016.10.7
α-nitro esters via the trapping of nitronium ions. The two-stage nitration and subsequent deacetylation of readily available 1,3-dicarbonyl compounds was achieved using a biphasic semicontinuous approach. α-Nitro esters and amides were obtained in good overall yields (53–84%). Some of the α-nitro-1,3-dicarbonyl intermediates exhibit enhanced reactivity and undergo an acid-catalyzed Nef-type reaction to