Diol derived blocked mercaptofunctional silane compositions in which the silanes comprise cyclic and bridged alkoxy groups derived from hydrocarbon-based diols and processes for their preparation are provided. Also provided are rubber compositions comprising the cyclic diol-derived blocked mercaptofunctional silanes, processes for their preparation and articles of manufacture comprising the rubber compositions, in particular, automotive tires and components thereof.
Process for Preparing Primary Intermediates for Dyeing Keratin Fibers
申请人:The Procter & Gamble Company
公开号:US20140121414A1
公开(公告)日:2014-05-01
A process has been developed for preparing 2-methoxymethyl-1,4-benzenediamine (IV-a), other compounds of formula (IV), and the salts thereof, all of which may be used as primary intermediates in compositions for dyeing keratin fibers.
PRODUCTION PROCESS FOR FLUOROSULFONYLIMIDE AMMONIUM SALT
申请人:Tsubokura Shiro
公开号:US20130331609A1
公开(公告)日:2013-12-12
A compound [II] such as ammonium N,N-di(fluorosulfonyl)imide is obtained by reacting a compound [I] such as N,N-di(chlorosulfonyl)imide and NH
4
F (HF)
p
. A compound [IV] such as an N,N-di(fluorosulfonyl)imide alkali metal salt is obtained by reacting the obtained compound [II] and an alkali metal compound or the like.
PROCESSES OF ENANTIOSELECTIVELY FORMING AN AMINOXY COMPOUND AND AN 1,2-OXAZINE COMPOUND
申请人:Zhong Guofu
公开号:US20110224429A1
公开(公告)日:2011-09-15
Disclosed is a process of enantioselectively forming an aminoxy compound of Formula (3)
In formula (3) R
1
is one of an aliphatic group and an alicyclic group. R
2
is one of hydrogen, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group and an arylalicyclic group. R
3
is one of hydrogen, halogen, hydroxyl, and an aliphatic group with a main chain having 1 to about 10 carbon atoms. The respective aliphatic, alicyclic, aromatic, arylaliphatic or arylalicyclic groups of R
1
, R
2
, and R
3
comprise 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si. The process includes contacting a carbonyl compound of Formula (1)
and a nitroso compound of Formula (2)
in the presence of a chiral catalyst. The chiral catalyst is a compound of Formula (IX)
[EN] PROCESS FOR THE PREPARATION OF THIOCARBOXYLATE SILANE<br/>[FR] PROCEDE DE PREPARATION DE SILANE THIOCARBOXYLATE
申请人:GEN ELECTRIC
公开号:WO2005007661A1
公开(公告)日:2005-01-27
An aqueous process is described in which thiocarboxylate silane is produced from haloalkyl silane by reaction of the haloalkyl silane with an aqueous solution of thiocarboxylate salt. Also described is a process for the preparation of aqueous thiocarboxylate salt from a sulfide and/or hydrosulfide and an acid chloride and/or acid anhydride.