182-55-8Relevant academic research and scientific papers
Copper-Catalyzed Asymmetric Three-Component Borylstannation: Enantioselective Formation of C-Sn Bond
Jia, Tao,Cao, Peng,Wang, Ding,Lou, Yazhou,Liao, Jian
, p. 4918 - 4922 (2015)
In summary, a first copper-catalyzed synthesis of α-aryl-β-borylstannane compounds was accomplished through three-component borylstannation of aryl-substituted alkenes. In the exploration of an asymmetric variant, chiral sulfinylphosphine ligands proved a
PROCESS FOR PRODUCTION OF HYDROXYTYROSOL USING ORGANOMETALLIC COMPOUNDS
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Page/Page column 16-17, (2012/02/02)
Disclosed is a process for the production of a 4-(2-hydroxyalkyl)-1,2-benzenediol, comprising the steps of (a) providing protected 1,2-benzenediol having the 1,2-hydroxyl groups protected, (b) halogenating the protected 1,2-benzenediol to obtain a protected 4-halo-1,2-benzenediol having the 1,2-hydroxyl groups protected, (c) reacting, in the presence of a metal or organometallic compound, the protected 4-halo-1,2-benzenediol to protected 4-(2-hydroxyalkyl)-1,2-benzenediol having the 1,2-hydroxyl groups protected, and (d) deprotecting the protected 4-(2-hydroxyalkyl)-1,2-benzenediol to obtain the 4-(2-hydroxyalkyl)-1,2-benzenediol. Also disclosed is the use of 1,2-benzenediol for the production of hydroxytyrosol.
Cu(II)-impregnated sulfated MCM-41: An efficient and convenient protocol for the synthesis of 1,3-benzodioxoles
Sivakumar,Ramesh,Lalitha
experimental part, p. 91 - 93 (2011/03/23)
An efficient synthesis of 1,3-benzodioxoles was achieved from catechol with different aldehydes and ketones using Cu(II) impregnated sulfated MCM-41 as an efficient and reusable catalyst. Copyright Taylor & Francis Group, LLC.
Microwave-assisted synthesis of 1,3-benzodioxole derivatives from catechol and ketones or aldehydes
Pingali, Subramanya R.K.,Jursic, Branko S.
experimental part, p. 4371 - 4374 (2011/09/19)
An efficient synthetic procedure for the preparation of a diverse library of 1,3-benzodioxoles was developed by applying controlled microwave heating in comparison with currently available conventional heating. Reactions were completed in less than 3 h. The isolation of product is simple, the isolated yields are good to excellent, and this method is applicable to large scale production.
Diallylation of 2,2-dialkylbenzodioxoles from TiCl4-mediated allylsilane reaction
Galy, Nicolas,Moraleda, Delphine,Santelli, Maurice
body text, p. 5238 - 5240 (2009/12/06)
Reaction of aliphatic ketones with catechol afforded 2,2-dialkylbenzodioxoles. Treatment of these benzodioxoles with allyltrimethylsilane in the presence of titanium tetrachloride led to 4,4-dialkylhepta-1,6-dienes resulting from a diallylation process. R
NEW PHARMACEUTICAL COMPOUNDS
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Page/Page column 40, (2008/06/13)
Compounds of formula (I), wherein R1-R4, X, Y and Z are as defined in claims, exhibit COMT enzyme inhibiting activity and are thus useful as COMT inhibitors.
(4-PIPERIDINYL)-1H-2-BENZOPYRAN DERIVATIVES USEFUL AS ANTIPSYCHOTIC AGENTS
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, (2008/06/13)
The present invention comprises (4-Piperidinyl)-1H-2-Benzopyran derivatives useful as antipsychotic agents, their intermediates, pharmaceutical compositions and methods of making these compounds. These compounds are useful in treating psychosis.
An efficient and convenient method for preparation of 2,2-disubstituted and 2-monosubstituted 1,3-benzodioxoles from ketones and aldehydes with catechol catalysed by zro2/so42-
Jin,Zhang,Wang,Guo,Li
, p. 289 - 291 (2007/10/03)
The title compounds have been synthesised by reaction of catechol with ketones and aldehydes catalysed by ZrO2/SO42- solid superacid in high yields. Ketones gave better yields than aldehydes.
(4-PIPERIDINYL)-1H-2-BENZOPYRAN DERIVATIVES USEFUL AS ANTIPSYCHOTIC AGENTS
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, (2008/06/13)
The present invention comprises (4-Piperidinyl)-1H-2-Benzopyran derivatives useful as antipsychotic agents, their intermediates, pharmaceutical compositions and methods of making these compounds. These compounds are useful in treating psychosis.
Asymmetric Diels-Alder reaction of optically active 3-(3,3,3- trifluoropropenylsulfonyl)oxazolidine: Synthesis of (8R)8-trifluoromethyl-2- oxa-6-thia-5-azatricyclo[5.2.2.01,5]-undecane-6,6-dioxide
Okano, Takashi,Nagai, Tomoyuki,Eguchi, Shoji,Kimoto, Hiroshi
, p. 53 - 56 (2007/10/03)
Asymmetric Diels-Alder reaction of optically active 3-(3,3,3- trifluoropropenylsulfonyl)-1,3-oxazolidine (1) with several dienes gave adducts regio- and stereoselectively in 69 - 78% de. Acetalization of 2- methoxybutadiene adduct with catechol gave tricy
