Neighboring Group Effects in Intramolecular Aldol Condensations. Rate Enhancement by γ Substituents<sup>1</sup>
作者:Marcel K. Eberle
DOI:10.1021/jo951681x
日期:1996.1.1
reaction resulted in the formation of the tricyclic lactone 4b. However, attempts to achieve an Aldol condensation under similar reaction conditions with the analogous aldehyde 3c, lacking the acetoxy group, failed, giving back the starting material 3c. On the other hand, the methoxy aldehyde 3d was cyclized to the tricyclic compound 4d.