SCHEDULED MAINTENANCE
α,γ-Disubstituted propynyl alcohols having a proton on 1-position of α-substituent have been dehydrated using PdCl2(PPh3)2 and SnCl2 in 1,3-dimethylimidazolidin-2-one under neutral conditions to produce 1,4-disubstituted (Z)-but-3-en-1 -ynes stereoselectively.
Y. Masuyama, J. P. Takahara, K. Hashimoto and Y. Kurusu, J. Chem. Soc., Chem. Commun., 1993, 1219 DOI: 10.1039/C39930001219
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