Highly Stereoselective Synthesis of Phenylseleno-and p-Tolylsulfonyl Substituted 1,3-Dienes from Fun

• 作 者: 谢美华 黄宪
• 机 构: Department of Chemistry, Zhejiang University (Xixi Campus), Hangzhou, Zhejiang 310028, China Depart
• 出 处: Chinese Journal of Chemistry
• 发表日期: 2004年02期
• 关键词: Highly allyl substituted alcohols anhydride diene carbonyl conjugated acetic alk

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.

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 1 H NMR , MS, IR and elemental analysis. The single crystal structure of 2a was determined by X-ray diffraction analysis.