Comparative studies for selective deprotection of the N-arylideneamino moiety from heterocyclic amides:: kinetic and theoretical studies.: Part 2

被引：9

作者：

Al-Awadi, Nouria A. ^{[1
]}

Ibrahim, Yehia A. ^{[1
]}

Dib, Hicham H. ^{[1
]}

Ibrahim, Maher R. ^{[1
]}

George, Boby J. ^{[1
]}

Abdallah, Mariam R. ^{[1
]}

机构：

[1] Kuwait Univ, Dept Chem, Safat 13060, Kuwait

来源：

TETRAHEDRON | 2006年 / 62卷 / 26期

关键词：

arylideneamino; pyrolysis; kinetics; reaction mechanism;

D O I：

10.1016/j.tet.2006.04.054

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

4-Benzylideneamino-1,2,4-triazine-3,5(2H,4H)-diones (2-5), 6-styryl-1,2,4-triazine-3,5(2H,4H)-dione (6), and 6-styryl-2,3-dihydro-3-thioxo- 1,2,4-triazin-5(4H)-one (7) were synthesized and pyrolyzed in the gas phase. The kinetic effect of changing the substituent on the triazine ring from hydrogen to methyl, phenyl, and styryl was measured. Analyses of the pyrolyzates of 2-5 showed the elimination products to be benzonitrile and the triazine fragment, while the pyrolyzates of 6 and 7 reveal the formation of cis- and trans-cinnamonitriles. Theoretical study of the pyrolysis reactions of 2-5 using an ab initio SCF method was investigated. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：6214 / 6221

页数：8

共 19 条

[1]

Al-Awadi NA, 1999, J PHYS ORG CHEM, V12, P654, DOI 10.1002/(SICI)1099-1395(199908)12:8<654::AID-POC168>3.0.CO

[2]

2-L

[3]

Al-Awadi NA, 2000, INT J CHEM KINET, V32, P403, DOI 10.1002/(SICI)1097-4601(2000)32:7<403::AID-KIN2>3.0.CO

[4]

2-P