Patent ID: 6492539
Filing Date: 2002-12-10
Classification: C07B,C07C,C07D,C07F,C08F,Y10S

Abstract:
A process for the preparation of indanones of the formula II from indanones formula I or of indanones of the formula IIa from indanones of the formula Ia which comprises reacting an indanone of the formula I or Ia with a coupling component, where, in the formulae I, Ia, II and IIa,R1 is a C1-C40-group which is bound via a carbon atom and may bear one or more identical or different heteroatom-containing radicals as substituents, or R1 is an OR2, SR2, NR22, PR22, SiR23 or OSiR23 group, where R2 are identical or different and are each a C1-C20-hydrocarbon group which may each bear one or more identical or different halogen, OH, OR2, SR2, NR22â€”, PR22â€”, â€”SiR23 or â€”OSiR23 substituents or two radicals R2 may be joined to form a ring system, or R1 is a C1-C20-heterocyclic group which is bound via a carbon atom and may in turn bear C1-C20-radicals or heteroatoms as substituents, X is a leaving group, R3 is a C1-C40-hydrocarbon group which is bound via a carbon atom and may bear one or more identical or different heteroatom-containing radicals as substituents, or R3 is a halogen atom or an NR22, PR22, B(OR2)2, SiR23 or SnR23 group, where R2 are identical or different and are each a C1-C20-hydrocarbon group, which may each bear one or more identical or different halogen, OH, OR2, SR2, NR22â€”, PR22â€”, â€”SiR23 or â€”OSiR23 substituents, or two radicals R2 may be joined to form a ring system, or R3 is a C1-C20-heterocyclic group which is bound via a carbon atom and may in turn bear C1-C20-radicals or heteroatoms as substituents, Y1, Y2 and Y3 are identical or different and are each a hydrogen atom or are as defined for X or R3, and Y4, Y5 and Y6 are identical or different and are each a hydrogen atom or are as defined for R3.