Benzodiazocines corresponding to the formula ##STR1## are converted to benzodiazepines corresponding to the formula ##STR2## of claim 1 by subjecting the benzodiazocine (a) if it is halogen-substituted in the 3-position to a thermal treatment which may also take place in the presence of a nucleophilic agent for the reaction or (b) if the 3-position is hydroxy substituted to treatment with a Lewis acid which is a chlorinating or brominating agent. Whenever the diazepine obtained as the final product has a 2-halogenomethyl group it may then be converted to benzodiazepine which is otherwise substituted in the 2-position.
符合公式##STR1##的苯二氮卓啉经过热处理转化为符合权利要求1公式##STR2##的苯二氮epines。如果苯二氮卓啉(a)在3位被卤素取代,则可在反应中加入亲核试剂进行热处理;如果3位被羟基取代,则可使用一种
氯化或
溴化剂作为
路易斯酸进行处理。每当得到的苯二氮epine最终产物具有2-卤代甲基基团时,它可以转化为在2位被取代的苯二氮epine。