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US 9,796,737 B2Granted
Method for producing 1-indanoles and 1-indanamines
AssigneeBayer CropScience AG
InventorsMark James Ford, Jean-Pierre Vors, Olivier Baudoin, Simon Janody
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Abstract
A description is given of a process for preparing 1-indanols and 1-indanamines by palladium-catalyzed arylation and of the use thereof as intermediates for the synthesis of fine chemicals and of active agrochemical ingredients.
Claims11
A process for preparing a 1-indanol and/or a 1-indanamine of formula (I) which comprises reacting a 1-(2-halophenyl)alkan-1-ol or 1-(2-halophenyl)alkan-1-amine (II) at elevated temperature under palladium catalysis in the presence of one or more phosphine ligands, a base, and a solvent,
- and in which the radicals, symbols, and indices are defined as follows:
- Y is NR1R2 or OR3,
- R1 is hydrogen or COR4,
- R2 is COR4,
- or R1 and R2 together form the group COCH2CH2CO or CO-phenylene-CO,
- R3 is Si(R5)3 or 2,2-dimethylpropanoyl,
- R4 is (C1-C6)-alkyl or phenyl,
- R5 is (C1-C6)-alkyl or phenyl,
- Hal is chlorine, bromine or iodine,
- R is fluorine, (C1-C3)-alkyl or (C1-C3)-alkoxy,
- X1 is hydrogen or (C1-C6)-alkyl,
- X2 is hydrogen or (C1-C6)-alkyl,
- X3 is hydrogen or (C1-C6)-alkyl,
- X4 is hydrogen or (C1-C6)-alkyl,
- or
- X1 and X2, or
- X3 and X4, or
- X1 and X3 together with the carbon atom to which they are bonded form in each case a 3- to 7-membered saturated ring,
- or
- Y and X1 together with the carbon atoms to which they are bonded form a 5- to 7-membered saturated ring,
- m is 0, 1, 2 or 3.
18 more elements
Dependencies are inferred from the claim text.