DIRECT ANTI-MARKOVNIKOV ADDITION OF ACIDS TO ALKENES
申请人:THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL
公开号:US20160096791A1
公开(公告)日:2016-04-07
A method of making an anti-Markovnikov addition product, comprises reacting an acid with an alkene or alkyne in a dual catalyst reaction system to the exclusion of oxygen to produce said anti-Markovnikov addition product; the dual catalyst reaction system comprising a single electron oxidation catalyst in combination with a hydrogen atom donor catalyst. Dual catalyst composition useful for carrying out such methods are also described.
QUINOLINIUM ION DERIVATIVES, PROCESS FOR THE PRODUCTION OF THE DERIVATIVES, PRODUCTS MADE BY USING THE SAME, AND REDUCTION AND OXIDATION METHODS WITH THE DERIVATIVES
申请人:Fukuzumi Shunichi
公开号:US20100004454A1
公开(公告)日:2010-01-07
An electron donor-acceptor dyad is provided that can provide a charge-separated state with longevity and not only high oxidizing power but also high reducing power. A compound of the present invention is a quinolinium ion derivative represented by the following formula (I), a stereoisomer or tautomer thereof, or a salt thereof:
where R
1
is a hydrogen atom or an alkyl group, and Ar
1
to Ar
3
each are a hydrogen atom or an electron-donating group. The compound of the present invention has the above-mentioned structure and therefore can provide a charge-separated state with longevity and not only high oxidizing power but also high reducing power and can be used for various products such as photocatalysts, photosensitizers, dyes, oxidants, reductants, dye-sensitized solar cells, and organic EL devices.
STEREOSELECTIVE PROCESS FOR PREPARING SUBSTITUTED POLYCYCLIC PYRIDONE DERIVATIVES
申请人:Shionogi & Co., Ltd.
公开号:US20200247818A1
公开(公告)日:2020-08-06
The present invention provides industrially suitable processes for preparing intermediates in the production of substituted polycyclic pyridone derivatives having a cap-dependent endonuclease inhibitory activity.
In the process as shown below, wherein each symbol is as defined in the specification, an optically active substituted tricyclic pyridone derivative of the formula (VII) is obtained in high yield and high enantioselectivity by subjecting a compound of the formula (III) or (VI) to intramolecular cyclization with controlling stereochemistry to obtain a compound of the formula (IV) having a removable functional group on an asymmetric carbon, and then removing the functional group thereof.
[EN] LIGHT INDUCED CATALYTIC C-H OXYGENATION OF ALKANES<br/>[FR] OXYGÉNATION C-H CATALYTIQUE INDUITE PAR LA LUMIÈRE D'ALCANES
申请人:ARIEL SCIENT INNOVATIONS LTD
公开号:WO2021059287A1
公开(公告)日:2021-04-01
A method of oxygenating a benzylic C-H bond is provided. The method comprises light induced activation of an initiator and subsequent reaction with oxygen, resulting in the formation of free radicals. Subsequently, free radicals catalyze the reaction of the benzylic C-H bond with oxygen, thereby forming an oxygenated compound.
[EN] SMALL-MOLECULE ORGANIC DYES<br/>[FR] COLORANTS ORGANIQUES À PETITES MOLÉCULES
申请人:UNIV BASEL
公开号:WO2019057451A1
公开(公告)日:2019-03-28
The present invention relates to compounds of formula (A), wherein Z is NR10 or O. These compounds represent novel acridinium and xanthylium salts having an unprecedented substituted heterocyclic core. They are useful as fluorescent dyes or precursors thereof in different applications including various imaging and sensing techniques, and, in particular, as photosensitizers and hereby preferably as photocatalysts. The present invention further relates to processes for preparing the inventive compounds via 1,5-organodimetallic reagents from double directed ortho-metalation reactions or combined halogen-metal exchange/ directed ortho-metalation reactions.