申请人:Stauffer Chemical Company
公开号:US04418210A1
公开(公告)日:1983-11-29
A novel process for preparing asymmetrical thioureas having the formula ##STR1## is disclosed, which comprises reacting RNH.sub.2 with CS.sub.2 in the presence of a base to produce RNHCS.sub.2 .crclbar. followed by reaction of the RNHCS.sub.2 .crclbar. with R.sub.1 R.sub.2 NH in the presence of a catalytic amount of a base to produce the desired product.
揭示了一种制备具有公式##STR1##的不对称硫脲的新工艺,其中包括在碱的存在下,将RNH.sub.2与CS.sub.2反应以产生RNHCS.sub.2 .crclbar.,然后在存在催化量的碱的情况下,将RNHCS.sub.2 .crclbar.与R.sub.1 R.sub.2 NH反应以产生所需的产物。