Patent ID: 6040487
Filing Date: 2000-03-21
Classification: C07C

Abstract:
A liquid phase process for producing halogenated alkane adducts of the formula CAR.sup.1 R.sup.2 CBR.sup.3 R.sup.4 whereinR.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each independently selected from the group consisting of H, Br, Cl, F, C.sub.1 -C.sub.6 alkyl, CN, CO.sub.2 CH.sub.3, CH.sub.2 Cl, and aryl, provided that only two of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 can be selected from C.sub.1 -C.sub.6 alkyl, CN, CO.sub.2 CH.sub.3, CH.sub.2 Cl, and aryl;A is selected from the group consisting of CX.sub.3, CH.sub.3-a X.sub.a, C.sub.n H.sub.(2n+1)-b X.sub.b and CH.sub.c X.sub.2-c R, where R is C.sub.n H.sub.(2n+1)-b X.sub.b, each X is independently selected from the group consisting of Br, Cl and I, a is an integer from 0 to 3, n is an integer from 1 to 6, b is an integer from 1 to 2n+1, and c is an integer from 0 to 1; andB is selected from the group consisting of Br, Cl and I;provided that (1) when A is CX.sub.3 then only one of X is I, (2) when A is CH.sub.3-a X.sub.a then each X is B and a is an integer from 1 to 2 when B is Br, a is 2 when B is Cl, and a is an integer from 0 to 2 when B is I, and (3) when A is C.sub.n H.sub.(2n+1)-b X.sub.b then each X is independently selected from Cl and F and B is I, comprising:contacting a halogenated alkane of the formula AB with an olefin of the formula CR.sup.1 R.sup.2 .dbd.CR.sup.3 R.sup.4 in the presence of a catalyst system containing (i) at least one catalyst selected from the group consisting of monovalent and divalent copper, and (ii) at least one promoter selected from the group consisting of pyridazines, pyrazines, and aliphatic heterocyclic compounds which contain at least one carbon-nitrogen double bond in the heterocyclic ring.