发明名称 A PROCESS FOR REDUCING DITHIOCARBAZINATE BUILDUP IN THE PREPARATION OF METHYL DITHIOCARBAZINATE
摘要 Disclosed herein is an improved process for preparing methyl dithiocarbazinate by (I) reacting carbon disulfide and hydrazine in an effective ratio to form hydrazinium dithiocarbazinate, followed by (II) methylating the hydrazinium dithiocarbazinate with methyl bromide, as represented by reactions as follows: (see formulas I, II) The improvement resides in conducting the reaction of the carbon disulfide and hydrazine in the presence of a specified amount of a non--alcoholic solvent to reduce dithiocarbazinate buildup.
申请公布号 CA2218669(C) 申请公布日期 2008.04.22
申请号 CA19972218669 申请日期 1997.10.21
申请人 BAYER CORPORATION 发明人 MAYES, DAVID M.
分类号 C07C337/02 主分类号 C07C337/02
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