作者:G. A. Tashbaev
DOI:10.1007/s11172-005-0269-5
日期:2005.2
Nitration, sulfonation, and iodination of 1,3-dihydrobenzo[c]thiophene 2,2-dioxide and its derivatives with electron-releasing and electron-withdrawing substituents were studied. Electrophilic substitution in 1,3-dihydrobenzo[c]thiophene 2,2-dioxide occurs at position 5. The presence of electron-withdrawing substituents in this position hinders further substitution, while electron-releasing substituents
研究了 1,3-二氢苯并 [c] 噻吩 2,2-二氧化物及其具有放电子和吸电子取代基的衍生物的硝化、磺化和碘化。1,3-二氢苯并[c]噻吩 2,2-二氧化物中的亲电取代发生在第 5 位。该位置吸电子取代基的存在阻碍了进一步取代,而第 5 和 6 位的放电子取代基将亲电试剂引导至位置 4。