A new and facile perhydroazulene formation : the total synthesis of the carotane (+)-daucene
作者:Frans Audenaert、Denis De Keukeleire、Maurits Vandewalle
DOI:10.1016/s0040-4020(01)87740-1
日期:1987.1
Thermolysis of the 2,5-bis(trimethylsiloxy)tricyclo|4.4.0.02,5| decan-7-ones leads to perhydroazulenes by a transannular reaction involving an oxygen to oxygen migration of a silyl group in the intermediate cyclodecadienones. This 3-step transformation of a 2-cyclohexenone into a perhydroazulene is illustrated by the synthesis of the carotane (+)-daucene ().
Mander’s Reagent for the Deoxycyanation of β-Diketones: A Direct Synthesis of Oxoalkenenitriles
作者:J. Armando Lujan-Montelongo、Alicia E. Cruz-Jiménez、Jeferson B. Mateus-Ruiz、Carolina Silva-Cuevas
DOI:10.1055/a-1809-6545
日期:2022.6
Ethyl cyanoformate and methyl cyanoformate (Mander’s reagent) are both routinely used to perform C-selective ketone alkoxycarbonylations. Interestingly, both reagents were found to yield oxoalkenenitriles through an unprecedented deoxycyanation of 1,3-dicarbonyl compounds (e.g., 2-methylcyclohexane-1,3-dione). Although this method is not general, this is the first time that both Mander’s reagent and