Diastereo- and enantioselective synthesis of cis-2-hydroxycyclohexanamine and corresponding ethers by asymmetric reductive amination
摘要:
A series of homochiral cis-2-alkoxy- and 2-aryloxycyclohexanamines 5b-5e has been synthesised by means of asymmetric reductive amination of the corresponding racemic 2-oxygenated cyclohexanones 2 with ee-values ranging from 95 to >99%. The respective 2-hydroxy and 2-cyclohexyl derivatives 5g-5h have been prepared from the 2-phenoxycyclohexanamine 4e. Relative and absolute stereochemistry has been elucidated. (C) 1997 Elsevier Science Ltd.
Diastereo- and enantioselective synthesis of cis-2-hydroxycyclohexanamine and corresponding ethers by asymmetric reductive amination
摘要:
A series of homochiral cis-2-alkoxy- and 2-aryloxycyclohexanamines 5b-5e has been synthesised by means of asymmetric reductive amination of the corresponding racemic 2-oxygenated cyclohexanones 2 with ee-values ranging from 95 to >99%. The respective 2-hydroxy and 2-cyclohexyl derivatives 5g-5h have been prepared from the 2-phenoxycyclohexanamine 4e. Relative and absolute stereochemistry has been elucidated. (C) 1997 Elsevier Science Ltd.