C—C bond cleavage by zinc(Ⅱ) complex and in-situ synthesis of 2-methyl-4(3H)-quinazolinone

被引：0
|
作者：
Li S. [1 ,2 ]
Huang Y. [1 ]
Liao B. [2 ]
机构：
[1] School of Chemical Engineering and Resource Recycling, Wuzhou University, Guangxi, Wuzhou
[2] School of Chemistry and Biological Engineering, Hechi University, Guangxi, Hechi
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / S1期
关键词：
catalysis; complex; structure; synthesis;
D O I：
10.16085/j.issn.1000-6613.2020-0172
中图分类号：
学科分类号：
摘要：
New chemical reactions and catalytic mechanisms can be found in the hydrothermal synthesis of complexes or compounds. In this paper, the compound of 2-methyl-4(3H)-quinazolinone is synthesized in-situ by [Zn(L)2·(H2O)2·(NO3)2] (where L=4(3H)-quinazolinone) complex to catalyzes the C C bond cleavage of acetonitrile under 130℃. The structures of 2-methyl-4(3H)-quinazolinone and [Zn(L)2·(H2O)2·(NO3)2] are characterized by IR, elemental analysis, and X-ray single crystal diffraction. The results show that [Zn(L)2·(H2O)2·(NO3)2] and 2-methyl-4 (3H)-quinazolone belong to the triclinic system and P-1 space group. Three sets of temperature control experiments show that the temperature has an important effect on the formation of 2-methyl-4 (3H)-quinazolinone, and that the temperature is higher than 130℃ is conducive to the catalytic reaction. The electrospray mass spectrometry (ESI-MS) was used to characterize the formation mechanism of 2-methyl-4 (3H)-quinazolone. It was found that [Zn(L)2·(H2O)2·(NO3)2] catalyzed the C C cleavage in the acetonitrile molecule to produce (CN)2 and ·CH3. The ·CH3 is selectively introduced between the C and N atoms in 4(3H)-quinazolone. This paper has a guiding effect on the in-situ introduction of CH3. © 2020, Chemical Industry Press Co., Ltd.. All rights reserved.
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页码：175 / 179
页数：4
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