Intramolecular reaction of γ-alkoxyallylstannane with hydrazone: stereoselective synthesis of β-aminotetrahydro-pyran and-furan
摘要:
The Lewis acid mediated cyclization of gamma-oxygen substituted allylic stannanes 1, 2 and 9, bearing a hydrazone group at the terminus of the carbon chain, afforded the corresponding trans-beta-amino cyclic ethers 3a, 4a and 10, respectively, with very high diastereoselectivities in high chemical yields.
Intramolecular reaction of γ-alkoxyallylstannane with hydrazone: stereoselective synthesis of β-aminotetrahydro-pyran and-furan
摘要:
The Lewis acid mediated cyclization of gamma-oxygen substituted allylic stannanes 1, 2 and 9, bearing a hydrazone group at the terminus of the carbon chain, afforded the corresponding trans-beta-amino cyclic ethers 3a, 4a and 10, respectively, with very high diastereoselectivities in high chemical yields.