Use of pyridinium chlorochromate as methylene oxidant in 5,6-dihydropyrans: a practical one-step preparation of the anhydromevalonolactone
作者:Francesco Bonadies、Romano Di Fabio、Carlo Bonini
DOI:10.1021/jo00183a030
日期:1984.5
O-silylated enolate phenylthialkylation: A synthesis of α,β-unsaturated 5- and 6-membered lactones.
作者:Hassan A. Khan、Ian Paterson
DOI:10.1016/s0040-4039(00)85578-1
日期:1982.1
KHAN, H. A.;PATERSON, I., TETRAHEDRON LETT., 1982, 23, N 48, 5083-5084
作者:KHAN, H. A.、PATERSON, I.
DOI:——
日期:——
A photochemical route to carbapenems from pyrazolidin-3-ones. Formal synthesis of PS-5
作者:James D. White、Steven G. Toske
DOI:10.1016/s0040-4039(00)60548-8
日期:1993.1
Photochemical ring contraction of a cis disubstituted pyrazolidin-3-one, prepared by hydrazinolysis of an α, β-unsaturated δ-lactone, gave the corresponding azetidinone which has been converted previously to the carbapenem antibiotic PS-5.