Reactions of 1,1,4,4-tetramethylsemicarbazide with prop-2-ynyl bromide, allyl bromide, and 1,3-dibromoprop-1-yne

被引：1
|
作者：
Elokhina, V. N. [1 ]
Nakhmanovich, A. S. [1 ]
Abramova, E. V. [1 ]
Larina, L. I. [1 ]
机构：
[1] Russian Acad Sci, Favorskii Irkutsk Inst Chem, Siberian Div, Irkutsk 664033, Russia
来源：
RUSSIAN JOURNAL OF ORGANIC CHEMISTRY | 2006年 / 42卷 / 10期
关键词：
Semicarbazide; Allyl Bromide; Methylhydrazine; Tertiary Nitrogen Atom; Dimethylhydrazones;
D O I：
10.1134/S1070428006100022
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
1, 1,4,4-Tetramethylsemicarbazide readily undergoes alkylation with prop-2-ynyl bromide and allyl bromide at the tertiary nitrogen atom of the hydrazine fragment to give 1-(prop-2-yn-1-yl)- and 1-(prop-2-en-1-yl) -1,1-dimethyl-2-(dimethylannocarbonyl)hydrazinium bromides, respectively. A new procedure was proposed for the synthesis of 6-bromomethylidene-2-dimethylamino-4,4-dimethyl-5,6-dihydro-4H-1,3,4-oxadiazin-4-ium bromide by reaction of 1, 1,4,4-tetramethylsemicarbazide with 1,3-dibromoprop-1-yne in acetonitrile.
引用
收藏
页码：1426 / 1428
页数：3
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