Enantioselective Syntheses of α‐exo‐Methylene‐Lactones via Organocatalytic Halolactonization.

DOI Number:

10.1002/adsc.201900728

Reaction Category:

Educt:

4-(1H-inden-3-yl)-2-methylenebutanoic acid, N-bromsuccinimid

Product:

(1S,2S)-2-bromo-5'-methylene-2,3,4',5'-tetrahydrospiro[indene-1,2'-pyran]-6'(3'H)-one

Catalyst:

1,4-Bis(9-O-dihydroquinidinyl)phthalazine ((DHQD)2PHAL)

Cas No:

140853-10-7

Associated Product from Buchler GmbH:

1,4-Bis(9-O-dihydroquinidinyl)phthalazine ((DHQD)2PHAL)

Cas No:

140853-10-7