INTERACTION OF 3,4-DIPHENYL-1,2,5-THIADIAZOLE 1,1-DIOXIDE WITH PROTON DONOR SOLVENTS

被引：25

作者：

MIRIFICO, MV ^{[1
]}

CARAM, JA ^{[1
]}

VASINI, EJ ^{[1
]}

SICRE, JE ^{[1
]}

机构：

[1] NATL UNIV LA PLATA,INIFTA,INST INVEST FISICOQUIM TEORICAS & APLICADAS,RA-1900 LA PLATA,ARGENTINA

来源：

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY | 1993年 / 6卷 / 06期

关键词：

D O I：

10.1002/poc.610060605

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The UV spectra of 3,4-diphenyl-1,2,5-thiadiazole 1,1-dioxide (I) and that of its thiadiazoline and thiadiazolidine derivatives were measured in several aprotic and protic solvents. Strong specific interactions of I with protic solvents are observed and the formation of stable carbinolamine type derivatives of I with methanol or ethanol is proposed. Spectroscopic data (UV, H-1 and C-13 NMR) and electrochemical evidence for their formation are given and a new thiadiazoline derivative of I (3-ethoxy-2-methyl-3,4-diphenyl-1,2,5-thiadiazoline 1,1-dioxide) was synthesized. The equilibrium constant for the reaction of 1 with ethanol is reported.

引用

页码：341 / 346

页数：6

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