ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
One-pot Diels-Alder reactions of cyclopentadiene with 3-crotonoyl- (2) and 3-acryloyl-4,4-dimethyl-1,3-oxazolidin-2-one (3), Mediated by chiral Lewis acids, are described. AlCl3, EtAlCl2, Et2AlCl, TiCl4, ZrCl4, SnCl4, SiCl4, and BBr3, modified with derivatives of D-mannitol, L-tartaric acid, and (R)-binaphthol, were applied as chiral promotors. The reaction with dienophile 2, carried out in CH2Cl2 at -78° with high yield, was characterized by excellent π-face selectivity. In case of the reaction with dienophile 3, the efficiency of the chirality transfer was much lower.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19870700223
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