for the first time using a new method which also allowed the co-preparation of terephthalic aldehyde. The reaction of this aldehyde with primary amines resulted in the formation of imines, including those containing an additional acetal group, while the reaction with trialkyl orthoformates led to the formation of acetals. The latter compounds were transformed into 4-(dibromomethyl)-substituted benzenes
                                    使用新方法首次合成了4-(二
溴甲基)
苯甲醛,该方法还可以共同制备对苯二醛。该醛与
伯胺的反应导致形成
亚胺,包括含有额外
缩醛基的
亚胺,而与
原甲酸三烷基酯的反应则导致
缩醛的形成。通过与
三氯化磷和P(III)酸的酯的连续反应,将后一种化合物转化为在侧链中具有
磷官能团的4-(二
溴甲基)-取代的苯。