TY - JOUR
T1 - Studies on structurally simple butenolides. VI. The polycyclic 3:1 adducts of protoanemonin with C-nucleophiles
AU - Bigorra, Joaquim
AU - Font, Josep
AU - Ortuño, Rosa M.
AU - Sanchez-Ferrando, Francisco
AU - Florencio, F.
AU - Martinez-Carrera, S.
AU - Garcia-Blanco, S.
PY - 1985/1/1
Y1 - 1985/1/1
N2 - X-Ray diffraction analysis yielded the constitution, configuration and conformation of a tetracyclic 3:1 adduct formed by reaction of protoanemonin 1 with lithium dimethylcuprate. The same configuration was assigned by analogy to other tetracyclic 3:1 adducts formed by reaction of 1 with lithium di-n-butylcuprate or di-methyl sodiomalonate. A pentacyclic 3:1 adduct also formed in the last reaction was fully assigned (constitution, configuration, conformation) by analysis of its 300 MHz 2-D COSY NMR spectrum. © 1985.
AB - X-Ray diffraction analysis yielded the constitution, configuration and conformation of a tetracyclic 3:1 adduct formed by reaction of protoanemonin 1 with lithium dimethylcuprate. The same configuration was assigned by analogy to other tetracyclic 3:1 adducts formed by reaction of 1 with lithium di-n-butylcuprate or di-methyl sodiomalonate. A pentacyclic 3:1 adduct also formed in the last reaction was fully assigned (constitution, configuration, conformation) by analysis of its 300 MHz 2-D COSY NMR spectrum. © 1985.
U2 - 10.1016/S0040-4020(01)91360-2
DO - 10.1016/S0040-4020(01)91360-2
M3 - Article
SN - 0040-4020
VL - 41
SP - 5589
EP - 5594
JO - Tetrahedron
JF - Tetrahedron
IS - 23
ER -