A FACILE CONVERSION OF SYMMETRICAL TO UNSYMMETRICAL THIOUREAS

被引：35

作者：

RAMADAS, K

SRINIVASAN, N

JANARTHANAN, N

机构：

[1] Centre for Agrochemical Research SPIC Science Foundation, Guindy Madras, 600 032

来源：

TETRAHEDRON LETTERS | 1993年 / 34卷 / 40期

关键词：

D O I：

10.1016/0040-4039(93)85067-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A convenient route for quantitative conversion of symmetrical thioureas into unsymmetrical thioureas is described. The method circumvents the use of toxic isothiocyanates and a case study is reported using 1,3-diphenylthiourea.

引用

页码：6447 / 6450

页数：4

共 20 条

[1]

ALCHIDE A, 1967, CHEM ABSTR, V67, P90479

[2] THE PREPARATION OF ISOCYANATES BY THE THERMAL DECOMPOSITION OF SUBSTITUTED UREAS [J].

BENNET, WB ;

SAUNDERS, JH ;

HARDY, EE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1953, 75 (09) :2101-2103

[3]

BHARGAVA PN, 1989, CURRENT SCI, P527

[4]

CHATTERJEE A, 1980, INDIAN J CHEM B, V19, P163

[5] CHEMISTRY OF ETHYLENIMINE .2. RING-OPENING OF 2,2-DIMETHYL-1-(N-PHENYLTHIOCARBAMYL)AZIRIDINE [J].

DEUTSCH, AS ;

FANTA, PE .

JOURNAL OF ORGANIC CHEMISTRY, 1956, 21 (08) :892-895

[6] CHEMISTRY OF 1,4-DIAMINO-1,3-BUTADIENES .3. TRANSAMINATION WITH SECONDARY AMINES [J].

FEGLEY, MF ;

BORTNICK, NM ;

MCKEEVER, CH ;

FARNUM, FB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1957, 79 (17) :4734-4736

[7] MODIFIED KALUZA SYNTHESIS .3. SYNTHESIS OF SOME AROMATIC ISOTHIOCYANATES [J].

HODGKINS, JE ;

REEVES, WP .

JOURNAL OF ORGANIC CHEMISTRY, 1964, 29 (10) :3098-&

[8]

IFTLAND DC, 1957, J AM CHEM OSC, V74, P6284

[9] SYNTHESIS OF FUSED 1,2,4-THIADIAZOLINES BY INTRAMOLECULAR CYCLOADDITION-ELIMINATION REACTIONS OF 4-METHYL-5-(CYANO TETHERED)IMINO-DELTA-2-1,2,3,4-THIATRIAZOLINES [J].

LABBE, G ;

LEURS, S .

TETRAHEDRON, 1992, 48 (36) :7505-7518

[10]

MAKHSUMOV AG, 1989, CHEM ABSTR 173388B, V111

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