55001-04-2Relevant articles and documents
Enantioselective halogenative semi-pinacol rearrangement: A stereodivergent reaction on a racemic mixture
Romanov-Michailidis, Fedor,Pupier, Marion,Gune, Laure,Alexakis, Alexandre
, p. 13461 - 13464 (2015/02/19)
An efficient, quantitative deracemization strategy for optically inactive allylic cycloalkanols has been achieved using the biphasic halogenative semi-pinacol reaction protocol. The resultant β-halo spiroketones, containing three contiguous stereogenic ce
Iridium-catalyzed isomerization of primary allylic alcohols
Mantilli, Luca,Mazet, Clement
body text, p. 35 - 37 (2010/03/30)
A readily accessible iridium hydrogenation catalyst displays high reactivity for the isomerization of primary allylic alcohols under mild reaction conditions. Key to the efficiency of the catalytic system is to deviate from the conventional hydrogenation route in favor of the desired isomerization pathway by adequately tuning the reaction conditions as indicated by preliminary mechanistic investigations. Schweizerische Chemische Gesellschaft.
Lipase catalyzed acylation of primary alcohols with remotely located stereogenic centres: the resolution of (±)-4,4-dimethyl-3-phenyl-1-pentanol
Sabbani, Sunil,Hedenstroem, Erik,Andersson, Jimmy
, p. 1712 - 1720 (2008/02/11)
Enantioselective acylation of some (±)-3-alkyl-3-phenyl-1-propanols was performed with enzymes as catalysts. Moderate enantiomeric ratios (E), ranging up to E = 11.6, were obtained. In the resolution, some of the lipases selectively acylated the (+)-enant
NITROGENOUS CYCLIC COMPOUNDS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME
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, (2008/06/13)
The present invention provides a novel compound having a superior calcium antagonism, in particular, a neuron-selective calcium antagonism. Namely, it provides a compound represented by the following formula, a salt thereof or a hydrate of them. In the formula, Ar indicates an optionally substituted 5- to 14-membered aromatic ring etc.; the ring A indicates any one ring selected from a piperazine, a homopiperazine, a piperidine and the like; the ring B indicates an optionally substituted C3-14 hydrocarbon ring etc.; E indicates a single bond, a group represented by the formula -CO-, etc.; X indicates a single bond, an oxygen atom etc.; R1 indicates a hydrogen atom, a halogen atom, a hydroxyl group etc.; and D1, D2, W1 and W2 are the same as or different from each other and each represents a single bond or an optionally substituted C1-6 alkylene chain.
Generation of γ-oxy-substituted benzylithium derivatives by reductive lithiation of 4-phenyl-1,3-dioxanes
Azzena, Ugo,Pilo, Luciano
, p. 664 - 668 (2007/10/03)
Reductive cleavage of 1,3-dioxanes 1a-c with Li metal in the presence of a catalytic amount of naphthalene in THF, followed by reaction with different electrophiles, allowed the synthesis of 3-substituted- and 3,3-disubstituted- 3-phenylpropan-1-ols 4 in good yields.