Anti-Markovnikov Hydroalkylation of Allylic Amine Derivatives via a Palladium-Catalyzed Reductive Cross-Coupling Reaction
作者:Ryan J. DeLuca、Matthew S. Sigman
DOI:10.1021/ja204080s
日期:2011.8.3
Palladium-catalyzed hydroalkylation of allylic amine derivatives by alkylzinc reagents is reported. This reductive cross-coupling reaction yields anti-Markovnikov products using a variety of allylic amine protecting groups. Preliminary mechanistic studies suggest that a reversible β-hydride elimination/hydride insertion process furnishes the primary Pd-alkyl intermediate, which then undergoes transmetalation
[EN] ISOTHIO CYANATO ALKYLTHIOPHENES AS CANCER CHEMOPROTECTIVE AGENTS<br/>[FR] ISOTHIO CYANATO ALKYLTHIOPHENES UTILISES COMME AGENTS CHIMIOPROTECTEURS CONTRE LE CANCER
申请人:LKT LAB INC
公开号:WO2000049013A1
公开(公告)日:2000-08-24
A compound comprising a heterocyclic moiety, such as a thiophene, covalently attached to an alkylene isothiocyanate moiety. The compound is effective to prevent the occurrence or progression of cancer or a precancerous condition, and can be used for therapeutic or prophylactic purposes. The compound can be provided and administered in the form of a pharmaceutical composition, a cosmetic, a food additive, supplement, or the like. Methods for synthesis and use of the chemopreventive compound of the invention are also provided.
Aldehyde Selective Wacker Oxidations of Phthalimide Protected Allylic Amines: A New Catalytic Route to β<sup>3</sup>-Amino Acids
作者:Barbara Weiner、Alejandro Baeza、Thomas Jerphagnon、Ben L. Feringa
DOI:10.1021/ja902591g
日期:2009.7.15
A newmethod for the synthesis of beta(3)-amino acids is presented. Phthalimide protected allylic amines are oxidized under Wacker conditions selectively to aldehydes using PdCl(2) and CuCl or Pd(MeCN)(2)Cl(NO(2)) and CuCl(2) as complementary catalyst systems. The aldehydes are produced in excellent yields and exhibit a large substrate scope. Beta-amino acids and alcohols are synthesized by oxidation