CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «ACYLOIN»
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acyloin în următoarea selecție bibliografică. Cărți în legătură cu
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1
Organic Reactions: Mechanism With Problems
ACYLOIN REACTION OR ACYLOIN CONDENSATION This reaction is given by
ester in presence of sodium metal to give a-hydroxy carbonyl compound known
as acyloin and the reaction is known as Acyloin condensation. Reaction takes ...
2
Bridged Aromatic Compounds
ultraviolet spectrum calculations, 369 [7.1]Paracyclophane, 32, 364, 374-375,
386387 infrared spectrum, 386-387 ultraviolet spectrum, 364, 374-375 [8]
Paracyclophane, 111, 286, 315 deformation energy in, 370 failure by acyloin, 36,
40-41 ...
3
Enzymes in Synthetic Organic Chemistry
Acyloin Condensation Acyloin condensations catalyzed by yeast were first
observed by Neuberg and later by Becvarova.l46Since that time, several other
yeast-catalyzed acyloin condensations between acetaldehyde and aromatic
aldehydes ...
Chi-Huey Wong, G. M. Whitesides, 1994
4
Organic Reactions And Their Mechanisms
I * i' K n R Na+ 60 OH O the acyloin Scheme 16.42 base catalysed ester
condensations can compete (e.g., Dieckmann reaction). Thus it may be essential
to trap the ethoxide ion (see, Scheme 6.2) as it is formed. This is done by
including ...
5
Polarity Control for Synthesis
The exception may be the acyloin condensation [ Bloomfield. 1976]. The acyloin
condensation couples two ester groups to form an a-ketol via the radical anions.
The most attractive feature of this process is that, for the intramolecular version, ...
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Frederic P. Miller, Agnes F. Vandome, McBrewster John, 2010
7
Biocatalysis for Green Chemistry and Chemical Process ...
5.7 ENZYMATIC CONDENSATION REACTIONS 5.7.1 Enzymatic Acyloin
Condensation Stereoselective carbon–carbon bond-forming reactions are
among the most useful methods in asymmetric synthesis as this allows the
simultaneous ...
Junhua (Alex) Tao, Romas Joseph Kazlauskas, 2011
Similarly, if esters of dibasic acids are used, the product will be a cyclic acyloin (
Prelog, 1 947 ; Stoll, 1947). / COOR Na / CO (CH2)X — > (CH2)X | XCOOR Xy,
ene XCHOH Cyclic acyloin Reduction of the acyloin to the corresponding ...
9
Biotransfrmtns Prepartv Organic Chemistry: The Use of ...
of the first industrial uses of a microbiological process, because the acyloin
produced from benzaldehyde is the first intermediate in a two-step process for
producing ephedrine [6]. Japanese workers have reported that the formation of
the ...
H. G. Davies, Ralph Green, D. R. Kelly, 2012
10
Oraganic Name Reactions Reagents and Molecular Rearrangements
1 Acyloin Condensation 0 - 2NaOCH H20 a R 2 f 4Na 2Na' R OMe R on The
biomolecular reductive coupling of carboxylic esters by reaction with metallic
sodium in an inert solvent under reflux gives an a-hydroxyketone, which is known
as an ...
