Multicomponent synthesis of dihydrobenzoxazepinones by coupling Ugi and Mitsunobu reactions

被引:34
作者
Banfi, Luca [1 ]
Basso, Andrea [1 ]
Guanti, Giuseppe [1 ]
Lecinska, Paulina [1 ]
Riva, Renata [1 ]
机构
[1] Dept Chem & Ind Chem, I-16146 Genoa, Italy
关键词
D O I
10.1039/b613056a
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Various dihydrobenzo[f][1,4]oxazepin-5-ones have been convergently prepared in 2-3 steps by coupling Ugi and Mitsunobu reactions. Two alternative methodologies were used: in the first one the Ugi condensation was followed by a Mitsunobu cyclization (2 steps); in the second one an intermolecular Mitsunobu reaction was followed by a deprotection step and then by an intramolecular Ugi reaction. Also a "convertible" isocyanide was used.
引用
收藏
页码:4236 / 4240
页数:5
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