Author/Authors :
Bogacheva، نويسنده , , A.M. and Yarovenko، نويسنده , , V.N. and Levchenko، نويسنده , , K.S. and Kobeleva، نويسنده , , O.I. and Valova، نويسنده , , T.M. and Barachevsky، نويسنده , , V.A. and Struchkova، نويسنده , , M.I. and Shmelin، نويسنده , , P.S. and Krayushkin، نويسنده , , M.M. and Charushin، نويسنده , , V.N.، نويسنده ,
Abstract :
The regioselective Friedel–Crafts acylation of 1,2-bis(2-methylbenzo[b]thien-3-yl)hexafluorocyclopentene was developed. Depending on the reaction conditions, mono- or bis(bromoacetyl) derivatives are formed as single products in good yields. Further heterocyclizations involving α-bromoketone moieties gave a series of new photochromic compounds.
Keywords :
Regioselective Friedel–Crafts acylation , Bis(benzothienyl)hexafluorocyclopentenes , Photochromes , thiazoles , Benzofurans
