Highly Stereoselective Synthesis of Phenylseleno- and p-Tolylsulfonyl Substituted 1,3-Dienes from Functionalized Allyl Alcohols
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摘要:
Phenylseleno- and p-tolylsulfonyl substituted 1,3-dienes were conveniently prepared with high stereoselectivity by the elimination reaction of phenylseleno- and p-tolylsulfonyl substituted allyl alcohols in the presence of BF3·Et2O in acetic anhydride. The products were characterized by 1H NMR, MS, IR and elemental analysis. The single crystal structure of 2a was determined by X-ray diffraction analysis.