The β-lactone route to α,β-unsaturated δ-lactones. Total syntheses of (±)-goniothalamin and (−)-massoialactone
摘要:
The HF-induced translactonization of 2'-silyloxy-3-trimethylsilyl-2-oxetanones, obtained through Lewis acid-promoted [2+2] cycloaddition between beta-silyloxyaldehydes and trimethylsilylsilylketene, into alpha,beta-unsaturated delta-lactones is applied to the syntheses of (+/-)-goniothalamin and (-)-massoialactone. (C) 2003 Elsevier Ltd. All rights reserved.
The β-lactone route to α,β-unsaturated δ-lactones. Total syntheses of (±)-goniothalamin and (−)-massoialactone
摘要:
The HF-induced translactonization of 2'-silyloxy-3-trimethylsilyl-2-oxetanones, obtained through Lewis acid-promoted [2+2] cycloaddition between beta-silyloxyaldehydes and trimethylsilylsilylketene, into alpha,beta-unsaturated delta-lactones is applied to the syntheses of (+/-)-goniothalamin and (-)-massoialactone. (C) 2003 Elsevier Ltd. All rights reserved.