申请人:BASF Aktiengesellschaft
公开号:US05569774A1
公开(公告)日:1996-10-29
Chlorine-substituted olefins I ##STR1## (R.sup.1 =organic radical; R.sup.2 =--CN, --CO--R.sup.3, --CO--S--R.sup.3, --CO--O--R.sup.3 --CO--N(R.sup.4,R.sup.5); R.sup.3 =organic radical; R.sup.4, R.sup.5 =H, organic radical) are prepared by reacting oxiranes II ##STR2## in the presence of a carboxamide (IIIa) or of a lactam (IIIb) in liquid phase with a chlorinating agent (IV). The products I are important intermediates for dyes, drugs and crop protection agents.
氯取代烯烃I ##STR1##(R.sup.1 =有机基团;R.sup.2 =--CN, --CO--R.sup.3, --CO--S--R.sup.3, --CO--O--R.sup.3 --CO--N(R.sup.4,R.sup.5);R.sup.3 =有机基团;R.sup.4, R.sup.5 =H, 有机基团)是通过在液相中,在羧酰胺(IIIa)或内酰胺(IIIb)的存在下,与氯化剂(IV)反应环氧化物II ##STR2##制备的。产物I是染料、药物和作物保护剂的重要中间体。