Oxidative rearrangement of 2-furylcarbamates with dimethyldioxirane: a high-yielding preparation of 5-hydroxypyrrol-2(5H)-ones
摘要:
A mild, general and efficient method for the oxidative rearrangement of 2-furylcarbamates to N-Boc-5-hydroxypyrrol-2(5H)-ones is reported. The feasibility of removing the Boc group from the products was demonstrated by the synthesis of two hitherto unknown 5-aryl-5-hydroxypyrrol-2(5H)-ones. (C) 2011 Elsevier Ltd. All rights reserved.
Process for producing 4-phenyl-4-oxo-2-butenoic ester derivative
申请人:Itoh Isamu
公开号:US20050176994A1
公开(公告)日:2005-08-11
A 4-phenyl-4-oxo-2-butenoate derivative is stably supplied in a short period of time, at low cost, in high purity and on an industrial scale by a process for producing the 4-phenyl-4-oxo-2-butenoate derivative, which comprises simultaneously or continuously reacting a sulfuric ester, an aromatic hydrocarbon and a maleic anhydride derivative.
PROCESS FOR PRODUCING 4-PHENYL-4-OXO-2-BUTENOIC ESTER DERIVATIVE
申请人:Sankio Chemical Co., Ltd.
公开号:EP1505054A1
公开(公告)日:2005-02-09
A 4-phenyl-4-oxo-2-butenoate derivative is stably supplied in a short period of time, at low cost, in high purity and on an industrial scale by a process for producing the 4-phenyl-4-oxo-2-butenoate derivative, which comprises simultaneously or continuously reacting a sulfuric ester, an aromatic hydrocarbon and a maleic anhydride derivative.