a process for the preparation of indanones of the formula II from, indanones of the formula I or of indanones of the formula IIa from indanones of the formula Ia
comprises reacting an indanone of the formula I or Ia with a coupling component.
Synthesis of 4H-benzo[e]-1,2-selanazin-4-one derivatives: a new heterocyclic ring system
作者:Mouslim Messali、Léon E. Christiaens、Solhe F. Alshahateet、Fethi Kooli
DOI:10.1016/j.tetlet.2007.08.082
日期:2007.10
The synthesis of novel 1,2-benzoselenazin-4-ones which are six-membered homologues of ebselen, is described in order to evaluate their glutathione peroxidase-like activity.
A direct and efficient synthesis of arylketones via arylboronic acid addition to nitriles in presence of inexpensive Mn/Cu catalytic system is reported. The use of non-precious Mn and Cu salts has been found to be highly advantageous both in terms of accessibility as well as cost effectiveness. A series of arylboronic acids as well as nitriles were used to synthesize a variety of symmetrical and unsymmetrical
Diverse Alkanones by Catalytic Carbon Insertion into the Formyl C−H Bond. Concise Access to the Natural Precursor of Achyrofuran
作者:Andrew J. Wommack、David C. Moebius、Austin L. Travis、Jason S. Kingsbury
DOI:10.1021/ol9010932
日期:2009.8.6
Over a century ago, the first reactions of diazomethane with aldehydes delivered methyl ketones. In the interim, aldehydes have been homologated with trimethylsilyldiazomethane, diazoacetates, and aryldiazomethanes, on rare occasion with catalysis. This work describes a mild procedure for convergent ketone assembly from nonstabilized diazoalkanes, including examples of chiral ketone synthesis with