13271-10-8Relevant academic research and scientific papers
Efficient double bond migration of allylbenzenes catalyzed by Pd(OAc) 2-HFIP system with unique substituent effect
Nishiwaki, Nagatoshi,Kamimura, Ryuichiro,Shono, Kimihiro,Kawakami, Toshihiko,Nakayama, Katsuhisa,Nishino, Kohei,Nakayama, Takayuki,Takahashi, Keisuke,Nakamura, Aki,Hosokawa, Takahiro
, p. 3590 - 3592 (2010)
A novel catalyst system of Pd(OAc)2-HFIP induces double-bond migration of allylbenzenes under mild conditions with low catalytic loading to afford 1-propenylbenzenes. The reaction shows a unique substituent effect that is highly dependent on the distance of substituents from the allylic moiety. Thus, the reactivity of substrates bearing a methyl group is ordered in para > meta > ortho, whereas it is entirely reversed as ortho > meta > para for methoxy and chloro substituents.
Method for synthesizing alkyl olefin through coupling of double-bond carbon-hydrogen bond and saturated carbon-hydrogen bond
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Paragraph 0060-0064; 0083, (2021/02/10)
The invention discloses a method for synthesizing alkyl olefin through coupling of a double-bond carbon-hydrogen bond and a saturated carbon-hydrogen bond. According to to the method, one-pot reactionis implemented on olefin and sulfoxide in the presence of ferric salt and hydrogen peroxide to generate alkyl olefin; in the method, sulfoxide is simultaneously used as a hydrocarbylation reagent anda solvent of olefin, and a reaction product is alkyl olefin from sulfoxide alkyl coupled with olefin carbon atoms, so that an olefin carbon chain is increased; the reaction conditions are mild, the selectivity is good, the yield is high, and industrial production is facilitated.
Method for synthesizing 1, 2-disubstituted olefin through reaction of terminal group olefin and sulfoxide
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Paragraph 0053-0054; 0057-0062; 0069, (2021/02/10)
The invention discloses a method for synthesizing 1, 2-disubstituted olefin by reaction of terminal olefin and sulfoxide. According to the method, terminal olefin with sulfoxide make reaction in one pot in the presence of ferric salt and hydrogen peroxide to generate the 1, 2-disubstituted olefin. sulfoxide is simultaneously used as a hydrocarbylation reagent and a solvent of olefin, and a reaction product is 1, 2-disubstituted olefin of which a terminal carbon atom in terminal olefin is coupled with a sulfoxide alkyl group, so that an olefin carbon chain is increased; the reaction conditionsare mild, the selectivity is high, the yield is high, and industrial production is facilitated.
A donor-acceptor complex enables the synthesis of: E -olefins from alcohols, amines and carboxylic acids
Chen, Kun-Quan,Shen, Jie,Wang, Zhi-Xiang,Chen, Xiang-Yu
, p. 6684 - 6690 (2021/05/31)
Olefins are prevalent substrates and functionalities. The synthesis of olefins from readily available starting materials such as alcohols, amines and carboxylic acids is of great significance to address the sustainability concerns in organic synthesis. Metallaphotoredox-catalyzed defunctionalizations were reported to achieve such transformations under mild conditions. However, all these valuable strategies require a transition metal catalyst, a ligand or an expensive photocatalyst, with the challenges of controlling the region- and stereoselectivities remaining. Herein, we present a fundamentally distinct strategy enabled by electron donor-acceptor (EDA) complexes, for the selective synthesis of olefins from these simple and easily available starting materials. The conversions took place via photoactivation of the EDA complexes of the activated substrates with alkali salts, followed by hydrogen atom elimination from in situ generated alkyl radicals. This method is operationally simple and straightforward and free of photocatalysts and transition-metals, and shows high regio- and stereoselectivities.
SULFAMATE DERIVATIVE COMPOUNDS, PROCESSES FOR PREPARING THEM AND THEIR USES
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Page/Page column 17, (2017/09/15)
The present invention relates to a pharmaceutical composition for treating or preventing CNS disorders containing a sulfamate derivative compound and/or pharmaceutically acceptable salt thereof as an active ingredient. Furthermore, the present invention relates to a method for treatment or prevention CNS disorders comprising administering a sulfamate derivative compound in a pharmaceutically effective amount to a subject in need of treatment or prevention of CNS disorders.
PHENYL CARBAMATE COMPOUNDS FOR USE IN PREVENTING OR TREATING PEDIATRIC EPILESY AND EPILESY-RELATED SYNDROMES
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Page/Page column 19; 20, (2014/09/29)
The present invention provides a pharmaceutical composition for preventing and/or treating a pediatric epilepsy or epilepsy-related syndrome comprising the phenyl carbamate compound as an active ingredient, and a use of the phenyl carbamate compound for p
PHENYLCARBAMATE COMPOUND AND MUSCLE RELAXANT CONTAINING THE SAME
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Page/Page column 5, (2013/02/28)
A novel phenylcarbamate compound and a pharmaceutical composition containing the same are provided. More specifically, a novel phenylcarbamate compound, a composition for muscle relaxation containing the phenylcarbamate compound as an active ingredient, a
PHENYL CARBAMATE COMPOUNDS FOR USE IN PREVENTING OR TREATING EPILESY
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Paragraph 0091; 0092, (2013/07/05)
A method for treatment or prevention epilepsy comprising administering a phenyl carbamate compound in a pharmaceutically effective amount to a subject in need of treatment or prevention of epilepsy is provided.
PHENYLCARBAMATE COMPOUND AND MUSCLE RELAXANT CONTAINING THE SAME
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Page/Page column 11, (2012/01/14)
A novel phenylcarbamate compound and a pharmaceutical composition containing the same are provided. More specifically, a novel phenylcarbamate compound, a composition for muscle relaxation containing the phenylcarbamate compound as an active ingredient, a
PROCESS FOR PREPARATION OF PHENYL CARBAMATE DERIVATIVES
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Page/Page column 7, (2012/07/28)
Provided are a process for the preparation of phenyl carbamate derivatives, useful in the treatment of CNS (central nervous system) disorders, an intermediate in the synthesis of the phenyl carbamate derivatives, and a process for preparation of the inter
