Naphthalene substituted in the 2- or .beta.-position with an electron-donating substituent can be acylated with high regioselectivity in the 6-position by using an acylating agent in substantially anhydrous hydrogen fluoride which functions both as catalyst and solvent.
Photo-induced substituted naphthalene synthesis from 5,5-diaryl-4,5-dihydrofurans
作者:H Nishino
DOI:10.1016/00404-0399(50)10905-
日期:1995.8.7
Irradiation of 3-acetyl-5,5-diaryl-2-methyl-4,5-dihydrofurans using a high pressure mercury lamp quantitatively gave 2-acetyl-4-aryl-1-methylnaphthalenes. A similar irradiation of 3-acetyl-5,5-diaryl-2-naphthyl-4,5-dihydrofurans yielded binaphthalene derivatives in good yields.