Results 251 to 260 of about 158,618 (306)

Catalytic Cross-Coupling of Secondary Alcohols

Journal of the American Chemical Society, 2019
Herein, an unprecedented ruthenium(II) catalyzed direct cross-coupling of two different secondary alcohols to β-disubstituted ketones is reported. Cyclic, acylic, symmetrical, and unsymmetrical secondary alcohols are selectively coupled with aromatic benzylic secondary alcohols to provide ketone products.
Subramanian Thiyagarajan, Chidambaram Gunanathan   +1 more
exaly   +3 more sources

Direct Amination of Secondary Alcohols Using Ammonia

Angewandte Chemie - International Edition, 2010
Hydrogen shuttle: For the first time secondary alcohols and ammonia can be directly converted into primary amines with a selectivity of up to 99¿% by using a simple ruthenium/phosphine catalyst (see scheme; R1, R2= alkyl, aryl, alkenyl; M=[Ru3(CO)12]; and L=phosphine ligand).
Dennis Pingen, Christian Müller, Dieter Vogt   +2 more
exaly   +4 more sources

Secondary alcohol dehydrogenase

Biochimica et Biophysica Acta, 1962
Abstract Secondary alcohol dehydrogenase, purified from a species of Pseudomonas , is specific for the DPN-linked oxidation of secondary alcohols and the DPNH-linked reduction of ketones; substrates include isopropanol, cyclohexanol and acetone.
W B, JAKOBY, J, FREDERICKS
openaire   +2 more sources

Racemization of enantiopure secondary alcohols by Thermoanaerobacter ethanolicus secondary alcohol dehydrogenase

Organic & Biomolecular Chemistry, 2013
Controlled racemization of enantiopure phenyl-ring-containing secondary alcohols is achieved in this study using W110A secondary alcohol dehydrogenase from Thermoanaerobacter ethanolicus (W110A TeSADH) and in the presence of the reduced and oxidized forms of its cofactor nicotinamide-adenine dinucleotide.
Musa, Musa M., Phillips, Robert S., Laivenieks, Maris, Vieille, Claire, Takahashi, Masateru, Hamdan, Samir   +5 more
openaire   +3 more sources

Mechanism of oxidation of secondary alcohols by bromine—oxidation of bicyclic secondary alcohols

Proceedings of the Indian Academy of Sciences - Section A, 1968
The kinetics of the bromine oxidation of borneol, isoborneol,α-norborneol andβ-norborneol have been investigated in order to find out whether the oxidation is sensitive to the configuration of the alcohol. There is a definite and considerable variation in rate which is shown to arise from stereochemical consequences.
V. Thiagarajan, N. Venkatasubramanian
openaire   +1 more source

Enantiodivergent conversion of chiral secondary alcohols into tertiary alcohols

Nature, 2008
From receptors in the nose to supramolecular biopolymers, nature shows a remarkable degree of specificity in the recognition of chiral molecules, resulting in the mirror image arrangements of the two forms eliciting quite different biological responses. It is thus critically important that during a chemical synthesis of chiral molecules only one of the
Jake L, Stymiest, Viktor, Bagutski, Rosalind M, French, Varinder K, Aggarwal   +3 more
openaire   +2 more sources

Alcoholic patients with secondary depression

American Journal of Psychiatry, 1983
This study of alcoholic patients with and without secondary depression showed that the two groups were almost identical in demographic characteristics, early-life antisocial problems, quantity and frequency of drinking, and family history of affective disorder.
openaire   +2 more sources

A New Method for the Deoxygenation of Secondary Alcohols

Journal of the Chemical Society, Perkin Transactions 1, 1975
On reaction with tributylstannane, O-cycloalkyl thiobenzoates and O-cycloalkyl S-methyl dithiocarbonates, derived from secondary alcohols, give good yields of the corresponding hydrocarbons. The mechanism of this planned reaction is radical in character and thus rearrangements common in carbocation reactions are avoided. The particular applicability of
Derek H. R. Barton, Stuart W. McCombie
openaire   +1 more source

Anesthetic Potencies of Secondary Alcohol Enantiomers

Anesthesiology, 1987
The Meyer-Overton rule has been interpreted to mean that general anesthetics act at a nonpolar site, either in a lipid bilayer or a protein. Optical isomers, also called enantiomers, are pairs of compounds with the same molecular formula and functional groups, but which differ in the arrangement of the groups around an "asymmetric" carbon atom and in ...
J K, Alifimoff, L L, Firestone, K W, Miller   +2 more
openaire   +2 more sources

Aerobic Oxidation of Primary Alcohols in the Presence of Activated Secondary Alcohols.

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Hiromichi Egami, Hideki Shimizu, Tsutomu Katsuki   +2 more
openaire   +1 more source