申请人:Bayer Aktiengesellschaft
公开号:US04980469A1
公开(公告)日:1990-12-25
A process for the preparation of an oxyguanidine of the formula ##STR1## in which R.sup.1 is an organic radical, R.sup.2, R.sup.3 and R.sup.4 each is hydrogen or an organic or inorganic substituent, X is N or CH, Y is N or CR.sup.3, and Z is N or CR.sup.4, comprising reacting ##STR2## in which R.sup.5 is optionally substituted alkyl or aralkyl, or its hydrogen halide, with a hydroxylamine derivative of the formula H.sub.2 N--O--R.sup.1 (III) at a temperature between about 0.degree. C. and 150.degree. C. New isothioureas of the formula ##STR3## are also shown.
一种制备式为##STR1##的氧基胍化物的方法,其中R.sup.1是有机基团,R.sup.2、R.sup.3和R.sup.4均为氢或有机或无机取代基,X是N或CH,Y是N或CR.sup.3,Z是N或CR.sup.4,包括将##STR2##与式为H.sub.2 N-O-R.sup.1(III)的羟胺衍生物在0℃至150℃之间的温度下反应,其中R.sup.5是可选择的取代烷基或芳基烷基,或其氢卤化物。还显示了新的异硫脲化合物的式为##STR3##。