Synthesis of crown-containing 2-styrylbenzothiazoles. Effect of alkali metal cations on the condensation of crown-ether benzaldehydes with 2-methylbenzothiazole

被引：14
|
作者：
Fedorova, OA
Andryukhina, EN
Lindeman, AV
Basok, SS
Bogaschenko, TY
Gromov, SP
机构：
[1] Russian Acad Sci, Photochem Ctr, Moscow 117421, Russia
[2] Natl Acad Sci Ukraine, AV Bogatsky Physicochem Inst, UA-65080 Odessa, Ukraine
来源：
RUSSIAN CHEMICAL BULLETIN | 2002年 / 51卷 / 02期
关键词：
crown-ether benzaldehydes; 2-methylbenzothiazole; 2-styrylbenzothiazoles; Wittig reaction; condensation; complex formation; alkali metals;
D O I：
10.1023/A:1015416029124
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Methods for the synthesis of unknown 2-styrylbenzothiazoles containing crown ether moieties with different combinations of O, S, and N-heteroatoms based on the Wittig reaction or condensation of 2-methylbenzothiazole with crown-ether benzaldehydes in the presence of strong bases or acids are proposed. The condensation in the presence of bases is accompanied by complex formation with participation of the crown ether moiety of the benzaldehyde. The complex formation has a pronounced influence on the yield of the target product and the pattern of condensation of 2-methylbenzothiazole with crown-ether benzaldehydes.
引用
收藏
页码：319 / 325
页数：7
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