A facile catalytic one-pot synthesis of N-acylhydrazones via acceptorless dehydrogenativecoupling of readily available alcohols and benzohydrazides (R2CONHNH2) using arene ruthenium (II) complexes has been described. The coupling of alcohols with various benzohydrazides using ruthenium catalysts provide a wide range of N-acylhydrazones in good to excellent yields (63–93%; 32 examples). The present
已经描述了使用芳烃钌 (II) 配合物通过容易获得的醇和苯并酰肼 (R 2 CONHNH 2 ) 的无受体脱氢偶联,轻松催化一锅法合成N-酰基腙。使用钌催化剂将醇与各种苯并酰肼偶联提供了广泛的N-酰基腙具有良好至极好的收率(63–93%;32 个例子)。本协议提供了高选择性的腙,没有任何烷基化产物,并耐受一系列官能团。对照实验表明,该机制通过醇的无受体脱氢进行,氢和水是唯一的副产物。克级合成说明了本策略的有用性。
Khan, Khalid Mohammed; Taha, Muhammad; Rahim, Fazal, Journal of the Chemical Society of Pakistan, 2013, vol. 35, # 3, p. 929 - 937
作者:Khan, Khalid Mohammed、Taha, Muhammad、Rahim, Fazal、Fakhri, Muhammad Imran、Jamil, Waqas、Khan, Momin、Rasheed, Saima、Karim, Aneela、Perveen, Shahnaz、Choudhary, Mohammad Iqbal