Enantioselective Construction of Chiral Cyclopropa [c] coumarins via Lewis Base-Catalyzed Cyclopropanation.

DOI Number:

10.1021/acs.joc.0c01782
Link to literature

Reaction Category:

Cyclopropanation

Educt:

substituted 6,7-dihydro-2H-chromen-2-one, tert-butyl 2-bromoacetate

Product:

substituted tert-butyl (1S,7bR)-2-oxo-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-1-carboxylate

Catalyst:

2,5-Diphenyl-4,6-bis(9-O-dihydroquininyl)pyrimidine

Cas No:

149820-65-5

Associated Product from Buchler GmbH:

2,5-Diphenyl-4,6-bis(9-O-dihydroquininyl)pyrimidine

Cas No:

149820-65-5