Convenient Synthesis of Oxazolo[5,4-h]pyrrolo[4,3,2-de]quinolones via Hypervalent Iodine Mediated Intramolecular Oxidative Cyclization
作者:Li-Ping Sun、Chun-Meng Wang、Sheng-Wei Yang、Kai-Xiang Tang、Tian-Hong Gao、Bo Pang、Yu-Ting Chen、Jing Wu、Jia Liu、Yu-Fan Shi
DOI:10.1055/s-0036-1588498
日期:2017.10
method has been developed for the synthesis of substituted oxazolo[5,4-h]pyrrolo[4,3,2-de]quinolones via the intramolecular oxidative cyclization by using PIFA as oxidant and TMSOTf as additive in DCE under an air atmosphere. The reaction proceeds in good yields and has good functional groups tolerance. A convenient and practical method has been developed for the synthesis of substituted oxazolo[5,4-h]pyrrolo[4
摘要 在PIPE下,以PIFA为氧化剂,以TMSOTf为添加剂,通过分子内氧化环化反应合成了取代的恶唑并[5,4- h ]吡咯并[4,3,2- de ]喹诺酮。大气。该反应以良好的产率进行并且具有良好的官能团耐受性。 在PIPE下,以PIFA为氧化剂,以TMSOTf为添加剂,通过分子内氧化环化反应合成了取代的恶唑并[5,4- h ]吡咯并[4,3,2- de ]喹诺酮。大气。该反应以良好的产率进行并且具有良好的官能团耐受性。