COMPOUNDS WITH BRIDGEHEAD NITROGEN .69. THE NMR-SPECTRA AND STEREOCHEMISTRY OF PERHYDROCYCLOPENTA[F]PYRIDO[1,2-C][1,3]OXAZEPINES

被引：3

作者：

CRABB, TA

ROCH, OG

机构：

[1] Department of Chemistry, Portsmouth Polytechnic, Portsmouth, Hampshire

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1992年 / 06期

关键词：

D O I：

10.1039/p29920000949

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The positions of conformational equilibria in a series of perhydrocyclopenta[f]pyrido[1,2-c][1,3]oxazepines have been determined by H-1 and C-13 NMR spectroscopy. In contrast with syn- and anti-perhydropyrido[1,2-c][1,3]benzoaxepine which favour the trans-fused conformers the equilibria for the cyclopenta analogues show marked shifts towards the 0-inside cis-fused conformers (71% cis conformer for the syn isomer, 78% cis conformer for the anti isomer).

引用

页码：949 / 953

页数：5

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