The Synthesis of 1,3-Diphenyldihydroisobenzofurans, 1,3-Diphenylisobenzofurans and o-Dibenzoylbenzenes from the Diene Addition Products to Dibenzoylethylene
作者:Roger Adams、Marvin H. Gold
DOI:10.1021/ja01858a012
日期:1940.1
Facile synthesis of dihaloheterocycles via electrophilic iodocyclization
An efficient and facile electrophilic iodocyclization for the synthesis of various O-, N-, and S-containing dihaloheterocycles has been developed. A wide range of the substituted propargyl alcohols having –OH, –NTs, and –SAc functional groups reacted with molecular iodine or bromoiodine at ambient temperature to produce the corresponding dihalogenated O-, N-, and S-containing five- and six-membered