An unusual thioketal formation: Attempted synthesis of 2,3-dibromo-6,7-benzobicyclo[3.2.1]octa-2, 6-diene
作者:Yavuz Taşkesenligil、Metin Balci
DOI:10.1016/0040-4020(95)00414-4
日期:1995.7
Treatment of 8 with 2 equiv. of NBS gave terra bromide 9 which was converted to the corresponding unsaturated ketone 7. Reaction of 7 with 1,2-ethanedithiol produced the unusual thioketal 14 besides normal ketalization product 13. Reduction of 13 with Raneynickel resulted in the formation of hydrocarbon 17, instead of the expected dibromide 4.