The cascade carbo-carbonylation of unactivated alkenes catalyzed by an organocatalyst and a transition metal catalyst: a facile approach to γ-diketones and γ-carbonyl aldehydes from arylalkenes under air
A novel concept for regiochemical and stereochemical control in Lewis acid promoted [3 + 4] annulation reactions
作者:Gary A. Molander、Kimberly O. Cameron
DOI:10.1021/jo00008a008
日期:1991.4
Studies on the regioselective and steroselective formation of a variety of 2-carbalkoxy-8-oxabicyclo-[3.2.1]octan-3-ones by means of a Lewis acid promoted [3 + 4] annulation process leads to a novel concept for selectivity in Lewis acid promoted carbonyl addition reactions.
MOLANDER, GARY A.;CAMERON, KIMBERLY O., J. ORG. CHEM., 56,(1991) N, C. 2617-2619
作者:MOLANDER, GARY A.、CAMERON, KIMBERLY O.
DOI:——
日期:——
The cascade carbo-carbonylation of unactivated alkenes catalyzed by an organocatalyst and a transition metal catalyst: a facile approach to γ-diketones and γ-carbonyl aldehydes from arylalkenes under air
作者:Jin Xie、Zhi-Zhen Huang
DOI:10.1039/b921310d
日期:——
A novel cascade carbon-carbonylation reaction of unactivated arylalkenes with ketones or aldehydes was catalyzed by an organocatalyst and a transition metal catalyst via a SOMO-enamine under air.
Neighboring group participation in Lewis acid-promoted [3 + 4] and [3 + 5] annulations. The synthesis of oxabicyclo[3.n.1]alkan-3-ones
作者:Gary A. Molander、Kimberly O. Cameron
DOI:10.1021/ja00056a002
日期:1993.2
2-(alkoxycarbon)-m-oxabicyclo[3.n.1]alkan-3-ones can be constructed by this process in which two new carbon-carbon bonds are generated. Unusually high regioncontrol is observed, and good to excellent stereochemicalcontrol can be achieved at virtually every position on the new carbocycles. Intramolecular neighboringgroupparticipation is proposed to explain the unusually high selectivities attained in the annulation