KSIĄŻKI POWIĄZANE ZE SŁOWEM «DIASTEREOMER»
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1
Ketalization/ring-closing Metathesis: Synthesis of ...
... q, J = 7 Hz), 4.20-3.90 (4H, m), 3.68 (1H, br s), 3.59 (1H, dd, J= 8.5, 6.5 Hz), 3.6
-3.25 (4H, m), 2.47 (1H, br s), 2.09-1.22 (24H, m), 1.16 (3H, t, J - 7 Hz); 13C NMR
(CDCI3) 6 172.8 (C), 135.6 (CH) diastereomer A, 135.5 (CH) diastereomer B, ...
Christopher Carl Marvin, 2008
2
Fundamentals of Asymmetric Catalysis
Equation A.3 Diastereomeric excess (%) (Diastereomer 1 ) - (Diastereomer 2) (
Diastereomer 1) + (Diastereomer 2) Diastereomeric ratio (Diastereomer 1) /crel(
Diastereomer 1) (Diastereomer 2) /crel(Diastereomer 2) Equation A.4 AG RT AG
...
Patrick J. Walsh, Marisa C. Kozlowski, 2009
3
Chiral Sulfur Reagents: Applications in Asymmetric and ...
Analytical HPLC (10% EtOAc in n-hexane, 2 mL/min) revealed three
diastereomers: diastereomer l, 5.1 min, 61%; diastereomer ll, 5.8 min, 22%;
diastereomer lll, 13.5 min, 17%. MPLC with elution with 8% EtOAc in hexanes
yielded 1.3 g of a ...
Marian Mikolajczyk, Jozef Drabowicz, Piotr Kielbasinski, 1997
4
A Microscale Approach to Organic Laboratory Techniques
The expansion shows one doublet at 1.53 ppm for the methyl group in the (R, R)
diastereomer and a larger doublet at 1.56 ppm for the methyl group in the (S, R)
diastereomer. The integral values shown below the spectrum provide a value of ...
Donald Pavia, George Kriz, Gary Lampman, 2012
5
Progress in Biological Chirality
In these literature reports the phenomenon of l.'l diastereomer co-crystallization
has been stated, but not analyzed and understood. The inversion pairs of the
compounds [(Cp)Ru(N-O)Cl] , N-O = salicylaidimine anion derived from (S)—
rnethyl ...
Gyula Palyi, Claudia Zucchi, Luciano Caglioti, 2004
6
Protein-Lipid Interactions: New Approaches and Emerging Concepts
This diastereomer bound strongly and destabilized only negatively charged
phospholipid vesicles, in contrast to native melittin, which bound strongly also
zwitterionic phospholipids. As a result, this diastereomer was not active against ...
C.Reyes Mateo, Javier Gómez, José Villalaín, 2008
7
Vitamin B 12 and B 12-Proteins
diastereomer in either pair of RCbi's. The enthalpic and entropic contributions to
the free energy diagram are shown in Figures 7 and 8, as enthalpy- (H) reaction
coordinate and entropy- (—TS) reaction coordinate diagrams, respectively.
Bernhard Kräutler, Bernard T. Golding, Duilio Arigoni, 2008
Found for diastereomer l: C, 24.48; N, 24.78; H, 4.69; and for diastereomer 11: C,
23.86; N, 24.63; H, 4.91. A solution of 3 g of I or 11 in 50 mL of water is passed
through a cationic Dowex 50W X4 column (25 cm long, 1.5 cm in diameter), in the
...
9
Photo-cross-linked Surfactant Shells Improve Stability and ...
... both diastereomers), 3.41 (d, 1H, J =10.8 Hz, major diastereomer), 3.29 (d, 1H,
J =10.8 Hz, minor diastereomer), 2.35 (m, 2H, both diastereomers), 1.62 (d, 3H, J
= 6.8 Hz, major diastereomer), 1.54 (d, 3H, J = 7.0 Hz, minor diastereomer), ...
10
Stereodivergent Synthesis of Bistetrahydrofuran-containing ...
Non-stereodivergent vs stereodivergent synthetic route A. Non-stereodivergent
route Substrate A Substrate B B. Stereodivergent route Substrate A Substrate B
Diastereomer C Diastereomer D condition a condition b condition a condition ...
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «DIASTEREOMER»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
diastereomer w wiadomościach.
Teva acquires Auspex for $3.5 billion, increases patent holdings in …
... either an individual diastereomer or a mixture of diastereomers and deuterium. The medication is designed to modulate opiate receptors and ... «IPWatchdog.com, Kwi 15»
Why Big Pharma Has No Interest In Achillion's 'Me Too' Hepatitis C …
Other drugs such as ALS-2200 (and its diastereomer VX-135) and BMS-986094 are promising but the data in humans are too scanty to draw ... «Seeking Alpha, Cze 14»
Indoxamycins A, C and F
It also gives a single diastereomer – meaning the alkyne selectively couples to the side of the dienone that gives a syn arrangement of the two ... «Chemistry World, Sty 14»
Catalyst duo exerts powerful stereocontrol
They have explored a wide structural range, seeing many yields above 70%, with over 20-fold excesses of the desired diastereomer, in over ... «Chemistry World, Maj 13»
Diels-Alder Reaction
Depending on which diastereomer is formed in this electrocyclization, the bicycle is in perfect orientation to perform one of two Diels-Alder ... «Chemical & Engineering News, Lis 11»
Column: Totally Synthetic
However, attempts with organoboranes, hydrosilanes or even sodium borohydride all failed - predominantly forming the wrong diastereomer. This problem was ... «Chemistry World, Gru 10»
Total synthesis of a chlorosulpholipid cytotoxin associated with …
Treatment of the major diol diastereomer with triflic anhydride and 1,4-diazabicyclo[2.2.2]octane (DABCO) and subsequent desilylation led to ... «Nature.com, Sty 09»
Pharma Find Patents More Elusive for Stereoisomers
Some of the prior art references also use the terms “enantiomer” and “diastereomer.” Enantiomers are stereoisomers that are mirror images of ... «Patent Baristas, Wrz 07»
Total synthesis of marine natural products without using protecting …
2) and furnished indole 8 as a single diastereomer in 61% isolated yield. An extensive screening of acids for the requisite site-selective (carbon ... «Nature.com, Mar 07»
A molecular information ratchet
a, Thread (E-diastereomer); b, E-1; c, 1 at the 350 nm photostationary state (dba-Z-1:mba-Z-1:E-1, 38:21:41); d, 1+benzil (10 equiv.) at the 350 ... «Nature.com, Lut 07»
