Optical yields of up to 97% ee characterize the cyclopropanation of olefins with diazoacetates in the presence of the semicorrin complex CuL2 (R = CMe2OH). The chiral, C2-symmetrical semicorrin ligands LH are readily accessible in optically pure form from pyroglutamic acid as starting material.
No takes yet. Share an insight, caveat, or question.
Fritschi et al. (1986) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: