Dynamic Kinetic Resolution of α-Substituted β-Ketoesters Catalyzed by Baeyer-Villiger Monooxygenases: Access to Enantiopure α-Hydroxy Esters
作者:Ana Rioz-Martínez、Aníbal Cuetos、Cristina Rodríguez、Gonzalo de Gonzalo、Iván Lavandera、Marco W. Fraaije、Vicente Gotor
DOI:10.1002/anie.201103348
日期:2011.8.29
BVMOs make a play: The dynamic kineticresolution of racemic α‐alkyl‐β‐ketoesters was performed through a selective Baeyer–Villiger oxidation employing different Baeyer–Villigermonooxygenases (BVMOs) in mild basic media. The product diesters were obtained with excellent yields and enantioselectivities, and used as precursors for optically active α‐hydroxy esters.
PROCESS FOR THE PREPARATION OF ACRYLATE ESTERS FROM ALKYL LACTATES
申请人:Regents of the University of Minnesota
公开号:US20190241495A1
公开(公告)日:2019-08-08
Catalytic hydroesterification of alkyl lactates give alkyl 2-(propionyloxy)propanoates, starting from alkyl lactate, carbon monoxide, ethylene gas, and a palladium catalyst. Pyrolysis of alkyl 2-(propionyloxy)propanoates gives acrylate esters.
The uracil compounds represented by the formula [V]:
wherein R1 represents C1-C5 perfluoroalkyl group and Q represents an aromatic group,
can be produced by making the amide compounds represented by the formula [II]:
wherein R1 and Q have the same meanings defined above, or its hydrate react with a cyanate salt in the presence of a protonic acid.
Pattern forming method, composition kit and resist film, manufacturing method of electronic device using these, and electronic device
申请人:FUJIFILM Corporation
公开号:US10031419B2
公开(公告)日:2018-07-24
There is provided a pattern forming method comprising (i) forming a film on a substrate using an actinic ray-sensitive or radiation-sensitive resin composition which contains (A) a resin which decomposes due to an action of an acid to change its solubility with respect to a developer and (C) a specific resin, (ii) forming a top coat layer using a top coat composition which contains a resin (T) on the film, (iii) exposing the film which has the top coat layer to actinic rays or radiation, and (iv) forming a pattern by developing the film which has the top coat layer after the exposing.
Process for the preparation of acrylate esters from alkyl lactates
申请人:Regents of the University of Minnesota
公开号:US10710956B2
公开(公告)日:2020-07-14
Catalytic hydroesterification of alkyl lactates give alkyl 2-(propionyloxy)propanoates, starting from alkyl lactate, carbon monoxide, ethylene gas, and a palladium catalyst. Pyrolysis of alkyl 2-(propionyloxy)propanoates gives acrylate esters.