Preparation of, and alkylation of enolate anions with, dimethyl 3-bromo-2 ethoxypropenylphosphonate. An efficient, convergent synthesis of 2-cyclo-penten-1-ones
作者:Edward Piers、Brian Abeysekera、John R. Scheffer
DOI:10.1016/s0040-4039(01)95384-5
日期:1979.1
The alkylation of enolateanions with dimethyl 3-bromo-2-ethoxypropenylphosphonate, followed by acid hydrolysis of the resultant products, affords diketo phosphonate compounds which can be cyclized efficiently to give the corresponding 2-cyclopenten-1-ones. This overall five-membered ring annelation process can be carried out without affecting acid-labile functional groups (e.g. ketal) in the enolate
A new reagent for a ”one-pot“ cyclopentenone annelation
作者:S.C. Welch、J.-M. Assercq、J.-P. Loh
DOI:10.1016/s0040-4039(00)84192-1
日期:1986.1
A new reagent, 3-ch1oro-2-diethylphosphoryloxy-1-propene (), for the preparation of cyclopentenones fromketone precursors via a ”one-pot“ synthesis is described.
3-Chloro-2-[(diethoxyphosphoryl)oxy]-1-propene: a new reagent for a one-pot cyclopentenone annelation. Synthesis of desoxyallethrolone, cis-jasmone, and methylenomycin B
作者:S. C. Welch、J. M. Assercq、J. P. Loh、S. A. Glase
DOI:10.1021/jo00384a012
日期:1987.4
PIERS E.; ABEYSEKERA B.; SCHEFFER J. R., TETRAHEDRON LETT., 1979, NO 35, 3279-3282
作者:PIERS E.、 ABEYSEKERA B.、 SCHEFFER J. R.
DOI:——
日期:——
PIERS, E.;ABEYSEKERA, B., CAN. J. CHEM., 1982, 60, N 9, 1114-1121