Mo(CO)6-Catalyzed oxidation of furan derivatives to E- and Z-enediones by cumyl hydroperoxide
作者:Antonio Massa、Maria Rosaria Acocella、Margherita De Rosa、Annunziata Soriente、Rosaria Villano、Arrigo Scettri
DOI:10.1016/s0040-4039(02)02636-9
日期:2003.1
E- and Z-Enediones are easily accessible by controlled oxidation of 2,5-disubstituted furans with Mo(CO)6/cumyl hydroperoxide system. The use of t-butyl hydroperoxide, as oxygen donor, leads to the formation of 2H-pyran-3(6H)-one derivatives.
Photochemical reactions of chromium-alkoxycarbene complexes with stabilized ylides to produce push-pull captodative allenes
作者:Michael R. Sestrick、Michael Miller、Louis S. Hegedus
DOI:10.1021/ja00037a008
日期:1992.5
Photolysis of chromium alkoxycarbene complexes in the presence of stabilized ylides produced allenes having effect withdrawing groups on C-1 and electron donating groups on C-3. These highly reactive captodative allenes rearranged to 1,3-substituted-1,3-dienes under mildly acidic conditions and hydrolyzed to γ-ket-α,β-unsaturated esters, both in excellent yield
Reaction of dialkylfurans with magnesium monoperoxyphthalate in MeOH: a new convenient approach to 2,5-dimethoxy-2,5-dihydrofurans
作者:Andrea D'Annibale、Arrigo Scettri
DOI:10.1016/0040-4039(95)00828-z
日期:1995.6
Dialkylfurans were reacted with magnesium monoperoxyphtalate (MMPP) in methanol to give 2,5-dimethoxy-2,5-dihydrofurans in high yields under mild reaction conditions.