A novel synthesis of functionalized spirooxaphospholes
Subject Areas :
Keywords: Ethyl propiolate, Triphenylphosphine, Alkylisatins, Oxaphosphole.,
Abstract :
The reaction of ethyl propiolate with triphenylphosphine in the presence of N-alkylisatins led to ethyl oxaphosphole in good yields. The reaction of dialkyl acetylenedicarboxylates with Ph3P in the presence of N-alkylisatins led to oxaphosphole-3,4-dicarboxylate in good yields.