Alkane carbonylation photocatalyzed by aromatic ketones under high CO pressure
作者:William T. Boese、Alan S. Goldman
DOI:10.1016/0040-4039(92)88155-x
日期:1992.4
Aromatic ketones photocatalyze the carbonylation of alkanes to the corresponding aldehydes at room temperature under high CO pressures (20 – 80 atm). In the presence of CCl4, cyclohexanecarbonylchloride is formed from cyclohexane; this reaction was used to determine the rate of addition of cyclohexyl radical to CO.
Synthesis of .alpha.-ketols mediated by divalent samarium compounds
作者:Jacqueline Collin、Jean Louis Namy、Frederic Dallemer、Henri B. Kagan
DOI:10.1021/jo00009a035
日期:1991.4
Coupling reactions of acid chlorides are mediated by SmI2 and SmCp2, leading to alpha-ketols 3. Condensation reactions of acid chlorides on aldehydes similarly product alpha-ketols 5; with ketones, best results are obtained with use of SmI2. Reactivities of SmI2 and SmCp2 are compared and mechanisms of the reactions discussed. Formation of an acylsamarium species is shown.
Namy Jean-Louis, Colomb Marielle, Kagan Henri B., Tetrahedron Lett, 35 (1994) N 11, S 1723-1726
作者:Namy Jean-Louis, Colomb Marielle, Kagan Henri B.