The Tandem Ring‐Closing Metathesis–Isomerization Approach to 6‐Deoxyglycals
作者:Bernd Schmidt、Anne Biernat
DOI:10.1002/chem.200800567
日期:2008.7.7
synthesized de novo as single isomers starting from ethyl lactate by using the tandem RCM-isomerization reaction as the key step. Different relative configurations become accessible by addition of vinyl- or allyl-metal compounds to protected lactaldehydes under Cram-chelate or Felkin-Anh control. The concept is exemplified for glycals of L-rhodinose and L-amicetose, as well as for ring-expanded non-natural