New entry to benzo[b]thieno[2,3-b]- and benzo[b]thieno-[3,2-b]-pyridines using 2- and 3-azidobenzo[b]thiophene as the nitrogen precursors

被引：14

作者：

Degl'Innocenti, A

Funicello, M

Scafato, P

Spagnolo, P

Zanirato, P

机构：

[1] UNIV BOLOGNA, DIPARTIMENTO CHIM ORGAN A MANGINI, I-40136 BOLOGNA, ITALY

[2] DIPARTIMENTO CHIM ORGAN, I-50121 FLORENCE, ITALY

[3] UNIV BASILICATA, DIPARTIMENTO CHIM, I-85100 POTENZA, ITALY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1996年 / 21期

关键词：

D O I：

10.1039/p19960002561

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

N-(3-Benzo[b]thienyl)- and N-(2-benzo[b]thienyl)-iminotriphenylphosphorane-prepared from the corresponding azidobenzo[b]thiophenes-react with alpha,beta-unsaturated aldehydes under mild conditions to give directly benzo[b]thieno[3,2-b]- and benzo[b]thieno [2,3-b]-pyridines through electrocyclization (and eventual dehydrogenation) of the initial aza Wittig imine products.

引用

页码：2561 / 2563

页数：3

共 32 条

[1]

ABRAMENKO PI, 1974, KHIM GETEROTSIKL+, P796

[2]

ABRAMENKO PI, 1972, KHIM GETEROTSIKL+, P1541

[3]

ABRAMENKO PI, 1971, KHIM GETEROTSIKL+, P468

[4] PYRIDINE N-SULFIDES - BENZISOTHIAZOLO[2,3-A]PYRIDINIUM TETRAFLUOROBORATES AND BENZOTHIOPHENO[3,2-B]PYRIDINES [J].