Synthesis of <i>cis-</i> and <i>trans</i>-2,5-Disubstituted Tetrahydrofurans by a Tandem Dihydroxylation-S<sub>N</sub>2 Cyclization Sequence
作者:James A. Marshall、Jesse J. Sabatini
DOI:10.1021/ol051507n
日期:2005.10.1
[reaction: see text] Dihydroxylation of delta- and epsilon-mesyloxy alpha,beta-unsaturated esters proceeds with in situ cyclization to afford 2,5-disubstituted and 2,3,5-trisubstituted tetrahydrofurans.
An Outside-In Approach to Adjacent Bistetrahydrofuran Annonaceous Acetogenins with <i>C</i><sub>2</sub> Core Symmetry. Total Synthesis of Asimicin and a C32 Analogue
作者:James A. Marshall、Jesse J. Sabatini
DOI:10.1021/ol061352z
日期:2006.8.1
[reaction: see text] A synthesis of the Annonaceousacetogenin asimicin and a side-chain analogue has been achieved by a highly convergent route in which Grubbs cross-metathesis plays a key role.