公开(公告)号：DE59101533D1

公开(公告)日：1994-06-09

申请号：DE59101533

申请日：1991-03-08

Applicant: BASF AG

Inventor： HUELLMANN MICHAEL DR ,  MAYR HERBERT PROF DR ,  BECKER RAINER DR

IPC: B01J31/26 ,  C07B61/00 ,  C07C2/00 ,  C07C2/72 ,  C07C13/48

Abstract: A process for preparing 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene of the formula I (I) comprises reacting p-cymene of the formula II (II) with a hexene of the formula IIIa, IIIb and/or IIIc (IIIa) (IIIb) (IIIc) in the presence of a catalytic amount of aluminum halide and a catalytic amount of a triphenylmethyl compound of the formula IV (IV) wherein R1, R2 and R3 are each, independently of one another, hydrogen, C1-C4-alkyl, nitro or halogen and X is hydrogen or halogen.

公开(公告)号：DE3769238D1

公开(公告)日：1991-05-16

申请号：DE3769238

申请日：1987-07-21

Applicant: BASF AG

Inventor： HENKES ERHARD DR ,  HALBRITTER KLAUS DR ,  MAYR HERBERT PROF DR ,  STRIEPE WILHELM DR ,  POCK RUDOLF DR

IPC: C07C2/68 ,  C07C2/86 ,  C07C13/465

Abstract: Indanes are prepared by reacting substituted or unsubstituted benzyl halides with olefins in the presence of a Lewis acid as catalyst by reacting benzyl halides I I (where R1 and R2=hydrogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy, aralkyl R3=R1, halogen or an ortho-fused ring system X=halogen) with olefins II II (where R4 to R7=hydrogen or alkyl unbranched at alpha) in the presence of catalytic amounts of titanium tetrachloride.

公开(公告)号：ES2052295T3

公开(公告)日：1994-07-01

申请号：ES91103536

申请日：1991-03-08

Applicant: BASF AG

Inventor： HUELLMANN MICHAEL DR ,  MAYR HERBERT PROF DR ,  BECKER RAINER DR

IPC: C07B61/00 ,  C07C2/00 ,  B01J31/26 ,  C07C2/72 ,  C07C13/48

Abstract: A process for preparing 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene of the formula I (I) comprises reacting p-cymene of the formula II (II) with a hexene of the formula IIIa, IIIb and/or IIIc (IIIa) (IIIb) (IIIc) in the presence of a catalytic amount of aluminum halide and a catalytic amount of a triphenylmethyl compound of the formula IV (IV) wherein R1, R2 and R3 are each, independently of one another, hydrogen, C1-C4-alkyl, nitro or halogen and X is hydrogen or halogen.

公开(公告)号：DE4008694A1

公开(公告)日：1991-09-19

申请号：DE4008694

申请日：1990-03-17

Applicant: BASF AG

Inventor： HUELLMANN MICHAEL DR ,  MAYR HERBERT PROF DR ,  BECKER RAINER DR

IPC: B01J31/26 ,  C07B61/00 ,  C07C2/00 ,  C07C2/72 ,  C07C13/48

Abstract: A process for preparing 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene of the formula I (I) comprises reacting p-cymene of the formula II (II) with a hexene of the formula IIIa, IIIb and/or IIIc (IIIa) (IIIb) (IIIc) in the presence of a catalytic amount of aluminum halide and a catalytic amount of a triphenylmethyl compound of the formula IV (IV) wherein R1, R2 and R3 are each, independently of one another, hydrogen, C1-C4-alkyl, nitro or halogen and X is hydrogen or halogen.

公开(公告)号：DE3626227A1

公开(公告)日：1988-02-04

申请号：DE3626227

申请日：1986-08-02

Applicant: BASF AG

Inventor： HENKES ERHARD DR ,  HALBRITTER KLAUS DR ,  MAYR HERBERT PROF DR ,  STRIEPE WILHELM DR ,  POCK RUDOLF DR

IPC: C07C2/68 ,  C07C2/86 ,  C07C13/465 ,  C07C1/28

Abstract: Indanes are prepared by reacting substituted or unsubstituted benzyl halides with olefins in the presence of a Lewis acid as catalyst by reacting benzyl halides I I (where R1 and R2=hydrogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy, aralkyl R3=R1, halogen or an ortho-fused ring system X=halogen) with olefins II II (where R4 to R7=hydrogen or alkyl unbranched at alpha) in the presence of catalytic amounts of titanium tetrachloride.