Org Lett
College of Pharmaceutical Science , Zhejiang University, Hangzhou , 310058 , P. R. China.
Published: July 2018
Substrate-controlled reactions have been developed for the synthesis of spirocyclopropylpyrazolones and bicyclic 4,5-dihydropyrazoles from 1,2-diaza-1,3-dienes and sulfur ylides. These protocols were carried out under mild reaction conditions without any additives in generally moderate to good yields. Plausible mechanisms for the transformations were proposed.
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http://dx.doi.org/10.1021/acs.orglett.8b01562 | DOI Listing |
Org Lett
July 2018
College of Pharmaceutical Science , Zhejiang University, Hangzhou , 310058 , P. R. China.
Substrate-controlled reactions have been developed for the synthesis of spirocyclopropylpyrazolones and bicyclic 4,5-dihydropyrazoles from 1,2-diaza-1,3-dienes and sulfur ylides. These protocols were carried out under mild reaction conditions without any additives in generally moderate to good yields. Plausible mechanisms for the transformations were proposed.
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