reaction not only leads to the targeted 4-chloro-N-[2,2-dichloro-1-(2-hydroxy-5-methylphenyl)-2-phenylethyl]benzenesulfonamide but is also accompanied by unexpected formation of the heterocyclic derivatives 4-chloro-N-(5-methyl-2-phenyl-1-benzofuran-3-yl)benzenesulfonamide and 5-methyl-3-phenyl-2-benzofuran-2(3H)-one.
所述Ç的-amidoalkylation p甲
酚与4-
氯ñ - (2,2-二
氯-2-苯基亚乙基)苯磺酰胺在H存在2 SO 4,
发烟硫酸,或者一h的混合物2 SO 4和P首次研究了4 O 10。结果表明,该反应不仅导致目标4-
氯-N- [2,2-二
氯-1-(2-羟基-5-甲基苯基)-2-苯基乙基]苯磺酰胺,而且还伴随着意想不到的生成。杂环衍
生物4-
氯-N-(5-甲基-
2-苯基-1-苯并呋喃-3-基)苯磺酰胺和5-甲基-3-苯基-2-
苯并呋喃-2(3 H)-一。