发明授权
US08541611B2 Bifunctional phenyl iso(thio)cyanates, processes and intermediates products for their preparation 失效
双官能苯基异(硫代)氰酸酯,其制备方法和中间体产品

Bifunctional phenyl iso(thio)cyanates, processes and intermediates products for their preparation
摘要:
A process for preparing phenyl iso(thio)cyanates of the formula I in which a compound of the formula II or its HCl adduct is reacted with a phosgenating agent where W is oxygen or sulfur and Ar and A are as defined in claim 1 is described. Moreover, the invention relates to the use of the phenyl iso(thio)cyanates for preparing crop protection agents.
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