An efficient and practical synthesis of benzazolo[2,1-b]quinazolinones and triazolo[2,1-b]quinazolinones catalyzed by nano-sized NS-C4(DABCO-SO3H)2)·4Cl
作者:Omid Goli-Jolodar、Farhad Shirini
DOI:10.1007/s13738-017-1164-3
日期:2017.11
In this study, 4,4′-(butane-1,4-diyl)bis(1-sulfo-1,4-diazabicyclo[2.2.2]octane-1,4-diium)tetrachloride (NS-C4(DABCO-SO3H)2)·4Cl is used as a nano-sized Brönsted acid catalyst for the efficient and preferment synthesis of benzazolo[2,1-b]quinazolinones and triazolo[2,1-b]quinazolinones derivatives. This protocol has many advantages including mild reaction conditions, acceptable reaction times, high
在这项研究中,4,4'-(butane-1,4-diyl)bis(1-sulfo-1,4-diazabicyclo [2.2.2] octane-1,4-diium)tetrachloride(NS-C 4(DABCO -SO 3 H)2)·4Cl用作纳米级布朗斯台德酸催化剂,可高效,优选地合成苯并[2,1- b ]喹唑啉酮和三唑并[2,1- b ]喹唑啉酮衍生物。该方案具有许多优点,包括温和的反应条件,可接受的反应时间,高收率和产物的后处理容易以及催化剂的可重复使用性。