PHOTOELECTRON SPECTROSCOPIC STUDY OF THE THERMAL-DECOMPOSITION OF 2-PYRROLIDINONE AND 2-PYRROLIDINETHIONE

被引：5
|
作者：
CHIN, WS
MOK, CY
HUANG, HH
RZEPA, HS
机构：
[1] NATL UNIV SINGAPORE,DEPT CHEM,SINGAPORE 0511,SINGAPORE
[2] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT CHEM,LONDON SW7 2AY,ENGLAND
来源：
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1995年 / 03期
关键词：
D O I：
10.1039/p29950000427
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
The thermal decomposition of 2-pyrrolidinone and 2-pyrrolidinethione was investigated in a flow system by following the changes in their UV photoelectron spectra at various temperatures. At ca. 850 degrees C 2-pyrrolidinone begins to decompose by a decarbonylation process into carbon monoxide. ethene, hydrogen cyanide and molecular hydrogen. By contrast, at ca. 800 degrees C, 2-pyrrolidinethione decomposes mainly into pyrrole and hydrogen sulfide. MO calculations at the PM3 and 6-31G levels provide theoretical support for the mechanisms proposed for these decompositions.
引用
收藏
页码：427 / 430
页数：4
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