Synthesis of enantiomerically pure α-hydroxyaldehydes from the corresponding α-hydroxycarboxylic acids: novel substrates for Escherichia coli transketolase
AROMATIC AMINE COMPOUND, CURING AGENT FOR EPOXY COMPOUND, CURABLE COMPOSITION, CURED PRODUCT, METHOD FOR PRODUCING CURED PRODUCT, AND METHOD FOR PRODUCING AROMATIC AMINE COMPOUND
申请人:TOKYO OHKA KOGYO CO., LTD.
公开号:US20210130284A1
公开(公告)日:2021-05-06
An aromatic amine compound capable of satisfactorily forming a cured product having exceptional alkali resistance by reaction with an epoxy compound; a curing agent for an epoxy compound, the curing agent including the aromatic amine compound; a curable composition including the curing agent for an epoxy compound; a cured product of the curable composition; a method for producing the cured product; and a method for producing the abovementioned aromatic amine compound. The aromatic amine compound has a structure such that a specific position in a central skeleton comprising a fused ring such as a fluorene ring is substituted with a side-chain group including two aromatic groups linked by a flexible bond such as an amide bond, at least one amino group is bonded to the end of the side-chain group, and the structure has no hydroxyl groups.
Chiral Propargylic Cations as Intermediates in S<sub>N</sub>1-Type Reactions: Substitution Pattern, Nuclear Magnetic Resonance Studies, and Origin of the Diastereoselectivity
作者:Dominik Nitsch、Stefan M. Huber、Alexander Pöthig、Arjun Narayanan、George A. Olah、G. K. Surya Prakash、Thorsten Bach
DOI:10.1021/ja411772n
日期:2014.2.19
substituents at the cationic center, with the nucleophile approaching the electrophilic center opposite to R(2). Transition states calculated for the reaction of allyltrimethylsilane with two representative cations support this hypothesis. Tertiary propargylic cations with a stereogenic center (-C*HXR(2)) in the α position were generated by ionization of the respective alcohol precursors with FSO3H in
Heterocyclic derivatives as modulators of ion channels
申请人:Martinborough Esther
公开号:US20080027067A1
公开(公告)日:2008-01-31
The present invention relates to heterocyclic derivatives useful as inhibitors of ion channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.
POLYCYCLIC PYRAZOLINONE DERIVATIVE AND HERBICIDE COMPRISING SAME AS EFFECTIVE COMPONENT THEREOF
申请人:SAGAMI CHEMICAL RESEARCH INSTITUTE
公开号:US20160024110A1
公开(公告)日:2016-01-28
Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R
1
, X
1
, X
2
, X
3
, and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.