Herein, we report a double deprotonation method used for the preparation of ynolates starting from nonbrominated 2,6-di-tert-butylphenyl esters. The current method is superior to the previously described double lithium/halogen exchange approach because easily accessible starting materials are used. This method will be especially useful for preparation of ynolates bearing functional groups in organic
MICROCAPSULES DE CHITINE OU DE DERIVES DE CHITINE CONTENANT UNE SUBSTANCE HYDROPHOBE, NOTAMMENT UN FILTRE SOLAIRE ET PROCEDE DE PREPARATION DE TELLES MICROCAPSULES