Answers are grounded in this paper and cite their sources.
A novel chiral pyrrolizidine base 5 derived from L-proline promotes the Baylis–Hillman reaction of ethyl and methyl vinyl ketones with electron deficient aromatic aldehydes with moderate levels of enantiomeric excess.
No takes yet. Share an insight, caveat, or question.
Barrett et al. (1998) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: