A new synthetic route to tropane alkaloids based on [4 + 2] nitroso cycloaddition to 1,3-cycloheptadienes
作者:Hideo Iida、Yohya Watanabe、Chihiro Kibayashi
DOI:10.1021/jo00211a006
日期:1985.5
Synthetic approaches to nortropanes and nortrop-6-enes; intramolecular displacement by nitrogen in 7-membered rings
作者:Antoinette Naylor (nee Bathgate)、Nicola Howarth、John R. Malpass
DOI:10.1016/s0040-4020(01)80313-6
日期:1993.1
The synthesis of simple nortropane and nortrop-6-ene derivatives from cyclohepta-1,3-diene is described. The key intermediates are trans-1-amino-4-chloro-cycloheptanes and -cyclohept-2-enes which are derived efficiently from the corresponding cis-amino-alcohols and undergo intramolecular cyclisation. Corresponding derivatisation of cyclohexa- and cycloocta-1,3-dienes is explored and attempts to achieve Pd-catalysed cyclisation of 1-amino-4-acetoxy-derivatives is described. Nitrogen inversion data for selected nortropane derivatives are included.
BATHGATE, ANTOINETTE;MALPASS, JOHN R., TETRAHEDRON LETT., 28,(1987) N 47, 5937-5940