Complex-Induced Proximity Effects in Directed Lithiations: Analysis of Intra- and Intermolecular Kinetic Isotope Effects in Directed Aryl and Benzylic Lithiations
作者:David R. Anderson、Neil C. Faibish、Peter Beak
DOI:10.1021/ja991043m
日期:1999.8.1
mechanism of proton transfers in directedlithiations has been investigated by measuring the intra- and intermolecular kinetic isotope effects for the benzyliclithiation of N-benzyl-N,N‘-dimethyl urea (6) and the ortho lithiations of the tertiary amide N,N-diisopropylbenzamide (7) and the secondary amide N-isopropylbenzamide (8) by sec-BuLi/TMEDA in THF. For the lithiation of 6, a large primary kinetic
HEAT-CURING EPOXY RESIN COMPOSITION CONTAINING NON-AROMATIC UREAS AS ACCELERATOR
申请人:Kramer Andreas
公开号:US20100273005A1
公开(公告)日:2010-10-28
The present invention relates to heat-curing epoxy resin compositions, which are characterized by high impact strength, good storage stability, and a low curing temperature. The epoxy resin compositions are suitable for use as a construction shell adhesive and for producing structural foams. They can already be cured in so-called bottom-baking conditions. Furthermore, it has been found that the use of an accelerator of the formula (Ia) or (Ib) results in an increase of the impact strength of heat-curing epoxy resin compositions.
Novel macrocyclic inhibitors of hepatitis c virus replication
申请人:Intermune, Inc.
公开号:EP2177523A1
公开(公告)日:2010-04-21
The embodiments provide macrocyclic compounds of the general Formula I, as well as compositions, including pharmaceutical compositions, comprising a subject compound. The embodiments further provide treatment methods, including methods of treating a hepatitis C virus infection and methods of treating liver fibrosis, the methods generally involving administering to an individual in need thereof an effective amount of a subject compound or composition.
METHOD FOR PRODUCING FLUORINE-CONTAINING ACYLACETIC ACID DERIVATIVE, METHOD FOR PRODUCING FLUORINE-CONTAINING PYRAZOLECARBOXYLIC ACID ESTER DERIVATIVE, AND METHOD FOR PRODUCING FLUORINE-CONTAINING PYRAZOLECARBOXYLIC ACID DERIVATIVE
申请人:Mitsui Chemicals Agro, Inc.
公开号:EP2263999A1
公开(公告)日:2010-12-22
A halogenating agent is added to a mixture including a base, a fluoroalkylcarboxylic acid derivative and an acrylate derivative to produce a fluoroaclyacetic acid derivative represented by the following Formula (3):
wherein Rf represents a fluorine containing alkyl group, R1 and R2 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, an arylalkyl grou p or an acyl group, or together represent an atomic group that forms a 5- or 6-memb ered ring containing a nitrogen atom to which R1 and R2 are bonded; R3 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, or an arylalkyl g roup; and R4 represents an alkyl group, a cycloalkyl group, an aryl group, or an aryl alkyl group.