New spirans containing a 1,5-benzodithiepine system, derived from methylbenzenes. Conformational transmission

被引：2

作者：

Baranska, J

Grochowski, J

Jamrozik, J ^{[1
]}

Serda, P

机构：

[1] Jagiellonian Univ, Dept Organ Chem, PL-30060 Krakow, Poland

[2] Jagiellonian Univ, Reg Lab Physicochem Anal & Struct Res, PL-30060 Krakow, Poland

来源：

ORGANIC LETTERS | 2000年 / 2卷 / 04期

关键词：

D O I：

10.1021/ol990335p

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

[GRAPHICS] A synthesis of three new spirans, derived from methylbenzenes, containing the 1,5-benzodithiepine system is reported. X-ray structure proved the identity of model monospiran 9. In the solid and liquid state, the conformation of the seven membered ring is chair, and the five-membered ring has the envelope conformation. The effect of conformational transmission in spirans 9 and 10 was observed, The synthesis of trispirans from hexamethylbenzene using the proposed scheme is also possible.

引用

页码：425 / 427

页数：3

共 16 条

[1]

[Anonymous], DYNAMIC NMR SPECTROS

[2] LONG-RANGE EFFECTS IN ALICYCLIC SYSTEMS .2. THE RATES OF CONDENSATION OF SOME TRITERPENOID KETONES WITH BENZALDEHYDE [J].