KINETIC-STUDIES OF THE LASER-INDUCED PHOTODECARBONYLATION OF 3,5-DI-TERT-BUTYL-1,2-BENZOQUINONE

被引：6

作者：

ALKENINGS, B ^{[1
]}

BETTERMANN, H ^{[1
]}

DASTING, I ^{[1
]}

SCHROERS, HJ ^{[1
]}

机构：

[1] UNIV DUSSELDORF,INST PHYS CHEM & ELEKTROCHEM,GEB 2643,W-4000 DUSSELDORF 1,GERMANY

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 1993年 / 49卷 / 03期

关键词：

D O I：

10.1016/0584-8539(93)80131-S

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The photodecarbonylation of 3,5-di-tert-butyl-1,2-benzoquinone was initiated by excitation of the 1(pi-pi*) and the 1(n-pi*) state, respectively, with the use of emission lines of an argon ion laser. The UV-vis reaction spectra exhibit a strong sensitivity to the selected solvents. Both UV-vis spectra and FTIR spectra show the existence of a persistent bis-ketene intermediate. The kinetic analysis yields that the course of reaction can be described as a consecutive process. The primary step acts as a light-induced electrocyclic ring cleavage generating the intermediate. In the second step, the CO abstraction leads to the corresponding monoketone.

引用

页码：315 / 320

页数：6

共 9 条

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