Canadian Journal of Chemistry
The effect of Lewis acids on the intramolecular Diels-Alder reaction of the furan diene
C Rogers, BA Keay
Index: Oppolzer,W.; Andres,H. Tetrahedron Letters, 1978 , p. 3397 - 3400
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Citation Number: 48
Abstract
... shift of the C-7 methyl doublet (6 0.93) due to the anisotropy of the C - w - 1 0 ... was added dropwise to the cooled solution by syringe, and the reaction was stirred for 1 h at -78OC. The a,P-unsaturated aldehyde was dis- tilled from Na2S0, under Ar, and was added neat (1.5 mmol ...