PREPARATION OF FUSED [1,3,5]BENZOTRIAZEPINES BY A TANDEM AZA WITTIG CARBODIIMIDE-MEDIATED ANNELATION REACTION

被引：11

作者：

MOLINA, P

ARQUES, A

ALIAS, A

机构：

[1] Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Murcia, 30071 Murcia, Campus de Espinardo

来源：

TETRAHEDRON LETTERS | 1991年 / 32卷 / 25期

关键词：

D O I：

10.1016/0040-4039(91)80667-U

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

AzaWittig type reaction of bis(iminophosphorane)2, available from the diazide 1 and triphenylphosphine, with one mole of isothiocyanate leads to the iminophosphoranes 3 derived from the [1,2,4]triazolo[2,3-b]indazole ring, which by treatment with a second mol of isothiocyanate afforded pentacyclic [1,3,5]benzotriazepines 4. Direct conversion of 2 to 4 was achieved using two moles of isothiocyanate.

引用

页码：2979 / 2982

页数：4

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