ALDEHYDE-SELECTIVE WACKER-TYPE OXIDATION OF UNBIASED ALKENES
申请人:CALIFORNIA INSTITUTE OF TECHNOLOGY
公开号:US20140316149A1
公开(公告)日:2014-10-23
This disclosure is directed to methods of preparing organic aldehydes, each method comprising contacting a terminal olefin with an oxidizing mixture comprising:
(a) a dichloro-palladium complex;
(b) a copper complex;
(c) a source of nitrite;
under aerobic reaction conditions sufficient to convert at least a portion of the terminal olefin to an aldehyde.
Ruthenium(iii)-catalysed phenylselenylation of allyl acetates by diphenyl diselenide and indium(i) bromide in neat: isolation and identification of intermediate
作者:Amit Saha、Brindaban C. Ranu
DOI:10.1039/c0ob00317d
日期:——
A fast and efficient phenylselenylation of allyl acetates by diphenyl diselenide and indium(I) bromide has been achieved in neat under the catalysis of Ru(acac)3. The intermediate complex of diphenyl diselenide and indium has been isolated and identified as a polymeric pentacoordinated In(III) selenolate complex, [In(SePh)3]n.
A Sulfoxide-Promoted, Catalytic Method for the Regioselective Synthesis of Allylic Acetates from Monosubstituted Olefins via C−H Oxidation
作者:Mark S. Chen、M. Christina White
DOI:10.1021/ja039107n
日期:2004.2.1
promote C-H oxidation versus Wacker oxidation chemistry and to control the regioselectivity in the C-H oxidation products. A catalytic method for the direct C-H oxidation of monosubstituted olefins to linear (E)-allylic acetates in high regio- and stereoselectivities and preparatively useful yields is described. The method using benzoquinone as the stoichiometric oxidant and 10 mol % of Pd(OAc)2 or Pd(O2CCF3)2
Catalytic Intermolecular Linear Allylic C−H Amination via Heterobimetallic Catalysis
作者:Sean A. Reed、M. Christina White
DOI:10.1021/ja710206u
日期:2008.3.1
Streamlined routes to (E)-allylic carbamates that can be further elaborated to medicinally and biologically relevant allylic amines are also demonstrated. Valuable 15N-labeled allylic amines may be generated directly from allyl moieties at late stages of synthetic routes by using the readily available 15N-(methoxycarbonyl)-p-toluenesulfonamide nucleophile. Evidence is provided that this reaction proceeds
Serial Ligand Catalysis: A Highly Selective Allylic C−H Oxidation
作者:Mark S. Chen、Prabagaran Narayanasamy、Nathan A. Labenz、M. Christina White
DOI:10.1021/ja0500198
日期:2005.5.18
We are reporting a mild, chemo-, and highly regioselective Pd(II)-catalyzed allylicoxidation of alpha-olefins to furnish branched allylic esters that proceeds via a novel serial ligand catalysis mechanism in which two different ligands (i.e., vinyl sulfoxide 2 and BQ) interact sequentially with the metal to promote distinct steps of the catalytic cycle (i.e., C-H cleavage and pi-allyl functionalization