公开(公告)号：DE19959066C1

公开(公告)日：2001-05-03

申请号：DE19959066

申请日：1999-12-08

Applicant: BASF AG

Inventor： GOETZ ROLAND ,  STAMM ARMIN ,  GOETZ NORBERT ,  KEIL MICHAEL ,  HENKELMANN JOCHEM ,  WOLF BERND ,  STEINMETZ ADRIAN

IPC: C07C51/60 ,  C07C51/58 ,  C07C63/10 ,  C07C63/68

Abstract: Preparation of o-chloromethyl-benzoyl chloride derivatives (I) by reaction of benzo-fused lactones (phthalides) (II) with thionyl chloride is catalyzed by boron trifluoride dihydrate and a quaternary ammonium salt. The preparation of o-chloromethyl-benzoyl chloride derivatives of formula (I) by reaction of benzo-fused lactones of formula (II) with thionyl chloride is carried out in presence of catalytic amounts of each of boron trifluoride dihydrate and a quaternary ammonium salt. R1-R4 = H, 1-4C alkyl, halo or CF3.

公开(公告)号：HU0003361A2

公开(公告)日：2001-02-28

申请号：HU0003361

申请日：1998-06-10

Applicant: BASF AG

Inventor： BOTZEM JOERG ,  HENNINGSEN MICHAEL ,  JULIUS MANFRED ,  KINDLER ALOIS ,  STAMM ARMIN

IPC: C07D233/56 ,  C07D233/60 ,  C07D233/80

Abstract: Carbonyldiimidazoles of the formulae Ia, Ib, Ic or mixtures thereofwhere R1 is C1-4-alkyl and R2 is hydrogen or methyl, and tert-butyl esters derived therefrom are described.

公开(公告)号：CA2283118A1

公开(公告)日：1998-09-17

申请号：CA2283118

申请日：1998-02-18

Applicant: BASF AG

Inventor： STAMM ARMIN ,  FISCHER MARTIN ,  HENNINGSEN MICHAEL ,  SIEGEL WOLFGANG

IPC: C07C1/30 ,  C07C13/04 ,  C07C17/00 ,  C07C17/18 ,  C07C22/00 ,  C07F9/535

Abstract: The invention concerns a process for halogenating cyclopropylmethyl ketone with at least one dihalogen triorganophosphorane of the general formula (I): R3PHal2, in which the R groups can be the same or different and designate a saturated or unsaturated aliphatic C1-C20 hydrocarbon group, a phenyl or C1-C4 alkylphenyl group which can optionally be further substituted by one to two fluorine, chlorine and/or nitro groups, P means phosphorus and Hal means chlorine, bromine or iodine, at 80 to 130 ~C, the dihalogen triorganophosphorane of the general formula (I) being prepared in situ from triorganophosphane oxide or triorganophosphane sulphide of the general formula (II), R3PA, in which R has the meaning given under formula (I) and A stands for oxygen or sulphur, with a halogenation reagent. The process is characterized in that the triorganophosphane oxide or triorganophosphane sulphide is used in catalytic amounts. The invention also concerns the halogenation product of the cyclopropyl ketone obtained according to this process and a process for reacting it to form cyclopropylacetylene.