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专利名称：Process for the preparation of alpha, alpha-difluoroalkyl phenyl ether derivatives
发明人：SIEGRIST, URS,INDERMUHLE, JEAN,
DR.,BAUMEISTER, PETER
申请号：EP85810271.8申请日：19850610公开号：EP0168344B1公开日：19880810
摘要：a method of producing a neuses d, d - difluoralkyl - phenyl\äthers formulawhat r 'hydrogen, halogen, amino, nitro, - so2 - r4 r5, - s -, - so -, or - s - s - r6 r7.r2 ishydrogen, halogen, nitro, hydroxyl, or - so2 - r8, r3 c, - c5 - halogenalkyl, x is oxygen,sulfur, - or - so2 -, r4 hydroxyl, halogen, amino, - n = c = o, - nh - co - ci, - nh (br, - nr9r10,benzyl, phenyl,c, - c4 - alkyl or - nh - co - no \\\"r\\\" 2 r5 and r6 c1 4c4 - alkyl, phenyl orbenzyl, r7 c1 - c4 alkyl, phenyl or benzyl, r8 hydroxyl or halogen.r9 and r10 each
independently c1 - c4 - alkyl or benzyl undp \\\"and r12 independently hydrogen, c1 - c4 -alkyl, phenyl or an aromatic heterocyclus meanis characterized by the fact that acompound of the formula ii wherein r1, r2, r3 and x in formula 1 given meanings, withhydrogen fluoride in the presence of a catalytic amount of antimony (v) werbindungfluoriert.the intermediate product of formula iii, applying can gew\ünschtenfalls byappropriate choice of reaction conditions to be isolated.
申请人：CIBA-GEIGY AG,CIBA-GEIGY AG
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