Results 131 to 140 of about 108,077 (187)

Cyclopropylmethyl Boronic Esters as General Reagents in Transition-Metal Catalyzed Homoallylation Reactions. [PDF]

J Am Chem Soc
Lozano B, Teresa J, Fernández I, Tortosa M.   +3 more
europepmc   +1 more source

Regiospecific Allenylation of Ketones with Propargyltrichlorosilane. [PDF]

J Org Chem
Brako N, Coppola A, Dales T, Hickerson J, Mienville T, Storey A, Captain B, Prabhakar R, Takenaka N.   +8 more
europepmc   +1 more source

1,3-Brook Rearrangement of α-Silyl Allylic Alcohols: Copper-Catalyzed Enantiospecific Formation of Allenes and Copper-Mediated ipso-Substitution Reactions Affording Trisubstituted Alkenes. [PDF]

Angew Chem Int Ed Engl
Sutro JL, Anderl F, Haf-Moths P, Fürstner A.   +3 more
europepmc   +1 more source

Regiospecific, Diastereo- and Enantioselective Allylboration with Methylenecyclobutylboranes: Experimental and Computational Study. [PDF]

Int J Mol Sci
Mikhaylov OA, Kolchina A, Murygin II, Nigmatov AG, Arteev IS, Gridnev ID.   +5 more
europepmc   +1 more source

Organophotoredox/Ni-Cocatalyzed Allylation of Allenes: Regio- and Diastereoselective Access to Homoallylic Alcohols

ACS Catalysis, 2022
A dual organophotoredox/nickel-catalyzed reductive coupling of allenes with aldehydes has been developed for the rapid assembly of anti-homoallylic alcohols with high levels of regioselectivities (>20:1), diastereoselectivities (up to >20:1), and yields (
Bernhard Breit
exaly   +2 more sources

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Oxidation of homoallyl alcohols

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1986
1. Parallel polymerization (10–20%) and oxidative-degradation (20–40%) reactions occur during oxidation of diallylcarbinol and related compounds to ketones. 2. The optimal oxidizing agents for diallylcarbinol are chromic acid in a two-phase system, moist PCC, and DMSO/PBr3.
I. A. Korshevets, E. A. Mistryukov
openaire   +1 more source

Olefin Exchange-Mediated Cyclopropanation of Nitriles With Homoallylic Alcohols [PDF]

Tetrahedron Letters, 2008
We report herein olefin exchange-mediated cyclopropanation of nitriles with homoallylic alcohols. The use of homoallylic alcohols is central to the successful implementation.
Jin Kun Cha
exaly   +3 more sources

Synthesis of Enantiopure Homoallylic Alcohols

Chemistry - A European Journal, 1998
The faciall-selective allylation of aliphatic ketones is a so far unsolved problem. Here a new method is presented which gives a 24:1 selectivity even for ethyl methyl ketone. The reaction proceeds in a domino-type fashion from mixing of the ketone 1, a chiral trimethylsilyl ether 2 derived from norpseudoephedrine, allylsilane 3, and catalytic amounts ...
Lutz F. Tietze, Kai Schiemann, Christoph Wegner, Christian Wulff   +3 more
openaire   +1 more source

Cross-Coupling of Homoallylic Alcohols With Styrene

Tetrahedron Letters, 2010
A cross-coupling reaction between a homoallylic alcohol and styrene is described to broaden the scope of the titanium alkoxide tether-mediated coupling reactions. Particularly noteworthy is exceptional 1,3-diastereoselectivity by o-vinylanisole in coupling with a Z-homoallylic alcohol.
Jin Kun Cha, Madhesan Balakrishnan
exaly   +2 more sources

Enantioselective Synthesis of Homoallylic Alcohols

Synthetic Communications, 1983
Abstract Much work has been done during the last decade on the synthesis of optically active alcohols by the enantioselective addition of an alkyl or aryl metallic species (Grignard, lithio or cuprous derivatives) to aldehydes or ketones in the presence of a chiral auxiliary able to complex the metallic species (1).
Bernard Cazes, Catherine Vernière, Jacques Gore   +2 more
openaire   +1 more source