29588-87-2Relevant academic research and scientific papers
Kinetic resolution of α-substituted alkanoic acids promoted by homobenzotetramisole
Yang, Xing,Birman, Vladimir B.
supporting information; experimental part, p. 11296 - 11304 (2011/10/19)
A new method for catalytic nonenzymatic kinetic resolution of α-substituted alkanoic acids has been developed, which relies on their activation with DCC followed by enantioselective alcoholysis of the intermediate symm-anhydrides in the presence of the amidine-based catalyst homobenzotetramisole (HBTM). Moderate to excellent selectivity factors (s=5-96) have been obtained in the case of several classes of substrates, namely, α-aryl-, α-aryloxy/alkoxy-, α-halo-, α-azido-, and α-phthalimido-alkanoic acids. Under similar conditions, α-(arylthio/alkylthio)-alkanoic acids undergo dynamic kinetic resolution providing corresponding esters in up to 92 % ee and up to 93 % yield. Copyright
Microwave-assisted rapid synthesis of phthalimide derivatives
Hajipour,Mallakpour,Imanzadeh
, p. 250 - 251 (2007/10/03)
A simple, extremely fast, and high yielding method for the reaction of phthalic anhydride with a number of amino acids using microwave irradiation under solventless 'dry' conditions has been developed. The phthalimide derivatives are prepared in excellent yields and without racemization.
SULFUR YLIDES. 3. SYNTHESIS OF KETO-GROUP STABILIZED AMINO-CONTAINING SULFUR YLIDES FROM AMINO ACIDS
Tolstikov, G. A.,Galin, F. Z.,Lakeev, S. N.,Khalilov, L. M.,Sultanova, V. S.
, p. 535 - 541 (2007/10/02)
An effective path of synthesis was developed of new synthetic intermediates, the optically active, keto-group stabilized amino-substituted sulfur ylides.
