反应详情

35.6 g (0.2 mol) of 7-methoxy-1,2,3,4-tetrahydro-1-naphthalenol (D. G. Thomas, A. H. Nathan J. Am. Chem. Soc. 79, 331, 1948) are stirred at ambient temperature for 3 hours in a liter of concentrated hydrochloric acid.