申请人:COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
公开号:US20150368295A1
公开(公告)日:2015-12-24
A method for preparing a pyrazole of formula (I) in which R,R′ and R″ have different meanings, characterised in that it involves reacting a sydnone of formula (II) in which R and R′ have the meanings already indicated, with an alkyne of formula (III) in which R″ has the meaning already indicated, in the presence of copper, to obtain a pyrazole compound of formula (I) that is then isolated and salified if desired.
一种制备式(I)的吡唑的方法,其中R、R′和R″具有不同的含义,其特征在于它涉及将式(II)的噻唑啉(其中R和R′已经指示了含义)与式(III)的炔烃(其中R″已经指示了含义)在铜的存在下反应,以获得式(I)的吡唑化合物,然后如有需要进行分离和盐化。