Two successful synthetic routes to trichostatin A (1) are described; one (Scheme 2) uses the γ-alkylation of a silyl dienol ether, the other (Scheme 4) uses a silyl-protected cyanohydrin anion. The two routes bear an upolung relation to each other. The Lewis acid-catalysed acylation of silyl enol ethers is a simple and effective way to prepare β-diketones and β-keto esters (Scheme 1); this reaction
Stereochemical studies. X. Synthesis of some epimeric δ-lactones
作者:Ellen Cooke、Themistocles C. Paradellis、John T. Edward
DOI:10.1139/v82-006
日期:1982.1.1
Stereospecific syntheses are reported for the δ-lactones 3, 5, 8, 17, and 26.
报道了δ-内酯3、5、8、17和26的立体特异性合成。
Regiospecific preparation of thermodynamic silyl enol ethers using bromomagnesium dialkylamides
作者:Marie E. Krafft、Robert A. Holton
DOI:10.1016/s0040-4039(00)81652-4
日期:1983.1
Theromodynamic silylenolethers are regiospecifically generated in high yield from cyclic ketones, bromomagnesium diisopropylamide (BMDA) and trimethysilyl chloride.