HYDROFLUOROETHER COMPOUNDS AND PROCESSES FOR THEIR PREPARATION AND USE
申请人:Flynn Richard M.
公开号:US20080139683A1
公开(公告)日:2008-06-12
A hydrofluoroether compound comprises two terminal, independently fluoroalkyl or perfluoroalkyl groups and an intervening oxytetrafluoroethylidene moiety (—OCF(CF
3
)—) bonded through its central carbon atom to an alkoxy- or fluoroalkoxy-substituted fluoromethylene moiety (—CF(OR)—), each of the terminal groups optionally comprising at least one catenated heteroatom.
An Intramolecular Iodine‐Catalyzed C(sp
<sup>3</sup>
)−H Oxidation as a Versatile Tool for the Synthesis of Tetrahydrofurans
作者:Vanessa Koch、Stefan Bräse
DOI:10.1002/ejoc.202100652
日期:2021.6.25
The first iodine-catalyzed cyclization reaction of aliphatic primary and secondary alcohols gives access to tetrahydrofurans through an intramolecular C(sp3)−H activation. The reaction proceeds under mild reactions using either a floodlight lamp or daylight.
Modified macromolecular compounds obtainable by using specific amino silane polymerization initiator compounds and optionally chain end-modifying compounds are described. Polymer compositions including such modified macromolecular compounds and the use of such compositions in the preparation of vulcanized (crosslinked) elastomeric polymer compositions and articles are described.
PROCESS FOR PREPARING A HYDROCARBON OR MIXTURE OF HYDROCARBONS
申请人:Van Buijtenen Jeroen
公开号:US20110173877A1
公开(公告)日:2011-07-21
A process for preparing a hydrocarbon or mixture of hydrocarbons comprising the steps of
(i) hydrogenating furfural, 5-hydroxymethylfurfural or a mixture of furfural and 5-hydroxymethylfurfural to provide furfuryl alcohol, 2,5-furandimethanol or a mixture of furfuryl alcohol and 2,5-furandimethanol;
(ii) oligomerizing the alcohol or mixture of alcohols of step (i) in the presence of an acidic catalyst to provide a carbon-carbon coupled oligomer; and
(iii) hydrogenating the oligomer of step (ii)
is provided. The hydrocarbons are useful as fuel blending components. Processes for controlling the oligomerization of alcohol or mixture of alcohols to optimise the production of oligomers suitable for conversion to hydrocarbons useful as kerosene and diesel components are also provided.
The present invention relates to substituted aryl-benzylamine compounds, to processes for their production, to their use as pharmaceuticals and to pharmaceutical compositions comprising them.