Préparation d'oxydes de diaryle diversement fonctionnalisés.
摘要:
An efficient synthesis of diversely substituted diary[ ethers via Diels-Alder cycloadditions is described The products obtained constitute attractive compounds as useful intermediates in the preparation of polycyclic compounds.
Synthesis of 1,3-dienes bearing both electron-donor and acceptor substituents
摘要:
Allylic benzodioxinic alcohols were prepared from 1,4-benzodioxin and then submitted to the orthoester Claisen rearrangement and Eschenmoser procedure leading to 3-substituted-2-alkylidene-1,4-benzodioxans. Di-and trisubstituted 1,3-dienes bearing both electron-donor and acceptor substituents were obtained in good yields from these compounds.