Reaction of Huisgen Zwitterion with 1,2-Benzoquinones and Isatins: Expeditious Synthesis of Dihydro-1,2,3-benzoxadiazoles and Spirooxadiazolines
摘要:
The zwitterionic intermediate generated from dialkyl azodicarboxylate and triphenylphosphine on reaction with 3-methoxy-1,2-benzoquinones afforded dihydro-1,2,3-benzoxadiazoles. N-Substituted isatins furnished spirooxadiazolines under similar conditions.
Reaction of Huisgen Zwitterion with 1,2-Benzoquinones and Isatins: Expeditious Synthesis of Dihydro-1,2,3-benzoxadiazoles and Spirooxadiazolines
摘要:
The zwitterionic intermediate generated from dialkyl azodicarboxylate and triphenylphosphine on reaction with 3-methoxy-1,2-benzoquinones afforded dihydro-1,2,3-benzoxadiazoles. N-Substituted isatins furnished spirooxadiazolines under similar conditions.