Synthesis of Alkyl (5-Oxo-2-thioxo-[1,3,4]thiadiazinan-6-ylidene)acetates by the Reaction of N-Aminorhodanine,Dialkyl Acetylenedicarboxylates,and Triphenylphosphine |
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| Authors: | Mohammad Anary-Abbasinejad Mohammad H Mosslemin Alireza Hassanabadi Masoumeh Tabatabaee |
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| Institution: | 1. Department of Chemistry , Islamic Azad University, Yazd Branch , Yazd, Iran mohammadanary@yahoo.com;3. Department of Chemistry , Islamic Azad University, Yazd Branch , Yazd, Iran |
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| Abstract: | Protonation of the reactive zwitterionic intermediate produced from the reaction between triphenylphosphine and dialkyl acetylenedicarboxylates by N-aminorhodanine followed by the addition of the conjugate anion of N-aminorhodanine on the produced vinylphosphonium cation leads to alkyl (5-oxo-2-thioxo-1,3,4]thiadiazinan-6-ylidene)acetates in good yields. |
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| Keywords: | Addition reaction dialkyl acetylenedicarboxylates N-aminorhodanine triphenylphosphine |
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