Mechanism of oxidation of alkylaromatic compounds by metal ions. 3. A product study of the reaction of some polymethylbenzenes with cerium ammonium nitrate in acetic acid
METHOD FOR PRODUCING BIPHENYLAMINES FROM AZOBENZENES BY RUTHENIUM CATALYSIS
申请人:BAYER CROPSCIENCE AKTIENGESELLSCHAFT
公开号:US20170334832A1
公开(公告)日:2017-11-23
The present invention relates to a novel method for preparing substituted biphenylamines
这项发明涉及一种制备取代联苯胺的新方法。
Preparation of aromatic and heteroaromatic carboxylic acids by catalytic ozonolysis
申请人:——
公开号:US20030216577A1
公开(公告)日:2003-11-20
A process for catalytically oxidizing alkylaromatic compounds of the formula (I)
Ar—CH
2
—R
where Ar is an optionally substituted, aromatic or heteroaromatic 5-membered or 6-membered ring or a ring system having up to 20 carbon atoms where Ar may optionally be fused to a C
1
-C
6
-alkyl group in which up to 2 carbon atoms may be replaced by a heteroatom, and R is hydrogen, phenyl, benzyl or heteroaryl, where the phenyl, benzyl or heteroaryl radicals may also be joined to Ar by a bridge, or R together with Ar forms an optionally substituted ring system which may contain one or more optionally substituted heteroatoms, to the corresponding aromatic or heteroaromatic carboxylic acids in a solvent with ozone in the presence of a transition metal catalyst and optionally in the presence of an acid at a temperature between −70° C. and 110° C. to the corresponding carboxylic acid.
The present invention provides a compound useful as a synthetic intermediate for an anti-HIV agent having an integrase inhibitory activity, a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate. Specifically, the present invention provides, for example, compounds represented by the formulas (6), (7-1), (7-2) and (8):
wherein R is a fluorine atom or a methoxy group, R
1
is a C
1
-C
4
alkyl group, R
2
is a hydroxyl-protecting group, and X
2
is a halogen atom, a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate.
OXYGEN SCAVENGING MOLECULES, ARTICLES CONTAINING SAME, AND METHODS OF THEIR USE
申请人:Deshpande Girish Nilkanth
公开号:US20110251395A1
公开(公告)日:2011-10-13
The invention relates to compounds of the structure of formula I and II:
where X is selected from the group consisting of O, S and NH; Y, A and B are independently selected from the group consisting of N and CH; D, E and F are independently selected from the group consisting of CH, N, O and S; the symbol
represents a single or a double bond; and R
1
, R
2
and R
3
are independently selected from the group consisting of H, electron withdrawing groups and electron releasing groups. In other embodiments, the compounds are used as oxygen scavengers and in barrier compositions and articles.
[EN] METHOD OF PRODUCING 1-HEXENE<br/>[FR] PROCÉDÉ DE FABRICATION DU 1-HEXÈNE
申请人:SUMITOMO CHEMICAL CO
公开号:WO2011016581A1
公开(公告)日:2011-02-10
A method of producing 1-hexene comprising: step 1: a periodic table group IV transition metal compound, an organoaluminum compound and ethylene are brought into contact with each other in a solvent to obtain a solution containing 1-hexene; and step 2: the solution obtained in step 1 is brought into contact with an aqueous solution containing a metal hydroxide and having a pH of 12.0 or higher.