Stereocontrolled preparation of tetrahydrofurans from acid-promoted rearrangements of allylic acetals
作者:Mark H. Hopkins、Larry E. Overman、Gilbert M. Rishton
DOI:10.1021/ja00014a030
日期:1991.7
tetrahydrofurans from readily available allylic diol and carbonyl components is reported. This synthesis is highly stereocontrolled and allows carbon side chains to be incorporated at each carbon. Enantiomerically pure tetrahydrofurans are readily prepared from chiral, nonracemic allylic diol precursors. The asymmetric synthesis of (+)-muscarine tosylate from the lactate-derived allylic diol 6a demonstrates that
Blue light photoredox decarboxylation and tin-free Barton-McCombie reactions in the stereoselective synthesis of (+)-muscarine
作者:Victoria Rodríguez-Tzompanzi、Leticia Quintero、Dulce M. Tepox-Luna、Silvano Cruz-Gregorio、Fernando Sartillo-Piscil
DOI:10.1016/j.tetlet.2018.12.058
日期:2019.1
allylation reaction at the anomeric position of a respective xylofuranose derivative was employed as a new synthetic strategy for the installation of the methyl group at the C-5 position of (+)-muscarine. Accordingly, the allyl group was transformed into the methyl group in three sequential steps highlighting a blue-light photoredox decarboxylation reaction. Additionally, a tin-free Barton-McCombie deoxygenation
A practical synthesis of (+)-muscarine from L-rhamnose
作者:Simon J. Mantell、George W. J. Fleet、David Brown
DOI:10.1039/p19920003023
日期:——
A practical seven-step synthesis of muscarine tosylate [(2S,4R,5S)-4-hydroxy-5-methyltetra-hydrofuran-2-ylmethyl] (trimethyl)ammonium tosylate) from L-rhamnose is described, which does not require the use of any protecting group.
Bandzouzi, Alphonse; Chapleur, Yves, Journal of the Chemical Society. Perkin transactions I, 1987, p. 661 - 664