Answers are grounded in this paper and cite their sources.
A highly enantioselective anti-diastereoselective hetero-Diels-Alder reaction between a glyoxylate and siloxy- or methoxydienes using a chiral phosphoric acid catalyst that possesses less bulky phenyl groups at the 3 and 3' positions of binaphthyl has been developed. The diastereoselectivities presented are disparate to those previously reported for hetero-Diels-Alder reactions catalyzed by a chiral Lewis acid.
No takes yet. Share an insight, caveat, or question.
Momiyama et al. (2009) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: