Results 81 to 90 of about 10,332 (223)

5-(tert-Butyldimethylsilyloxy)-1-(2-chloro-5,8-dimethoxyquinolin-3-yl)-3-methylenepentan-1-ol

Molbank, 2012
Novel 5-(tert-butyldimethylsilyloxy)-1-(2-chloro-5,8-dimethoxyquinolin-3-yl)-3-methylenepentan-1-ol (7) was prepared via allylation of 2-chloro-5,8-dimethoxyquinoline-3-carbaldehyde (6) with functionalized allylic iodide as tert-butyl-(3-(iodomethyl)but ...
Linda Bouarata, Dahmane Tebbani, Paul Mosset   +2 more
doaj   +1 more source

Synthesis of 2‐Aminotetralins via Pd‐Catalyzed Alkene Difunctionalization Reactions: Use of Ligand Structure to Suppress Facile Intramolecular 5‐Exo‐Heck Reactions

Advanced Synthesis &Catalysis, Volume 368, Issue 13, 2 July 2026.
Aryl triflates that contain ortho‐butenyl groups typically undergo facile intramolecular Pd‐catalyzed Heck reactions to form indene derivatives. However, these substrates can instead be coupled with amines in Pd‐catalyzed alkene difunctionalization reactions to generate 2‐amino tetralins and/or 1‐aminomethyl indanes when a catalyst composed of Pd2(dba ...
Andrew Cruz, John P. Wolfe
wiley   +1 more source

INDIUM-PROMOTED ALLYLATION OF ALKYNES WITH ALLYLIC ALCOHOLS: HIGHLY REGIOSELECTIVE SYNTHESIS OF HALOGEN-SUBSTITUTED 1,4-DIENES [PDF]

, 2013
Indium-promoted allylation of alkynes by direct use of allyl alcohols as the allylating agents has been developed under mild conditions, in which a wide range of allylic alcohols and alkynes (both aromatic and aliphatic alkynes) could be tolerated, and ...
Yue, Hui-Lan, Ma, Lei, Ji, Jian-Xin, Ma, L (reprint author), State Food & Drug Adm, Ctr Drug Evaluat, Beijing 100038, Peoples R China   +3 more
core  

Chelation-Assisted Substrate-Controlled Asymmetric Lithiation-Allylboration of Chiral Carbamate 1,2,4-Butanetriol Acetonide

Molecules, 2015
The lithiation of 2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethyl diisopropylcarbamate (1) is achieved freely by sec-butyllithium in diethylether with high lk-diastereoselectivity: the bicyclic chelate complexes 3a and 3b are reacted with electrophiles to form ...
Adeem Mahmood, Hamad Z. Alkhathlan, Saima Parvez, Merajuddin Khan, Sohail A. Shahzad   +4 more
doaj   +1 more source

Asymmetric α‐Alkylation With Activated and Unactivated Electrophiles by a Highly Productive and Recyclable Lewis Acid/Imidazolium Catalyst

Angewandte Chemie International Edition, Volume 65, Issue 27, 1 July 2026.
An air‐stable, easily prepared, bifunctional Cu(II)/imidazolium complex enables highly enantioselective α‐alkylation of 1,3‐dicarbonyls with outstanding productivity (TON up to 1740). Highlights include broad electrophile scope spanning π‐activated and nonactivated reagents, stereo‐retentive allylation, simple catalyst synthesis, and efficient catalyst
Johanna Haußmann, Alexander Beck, Dominik Hornung, Michael Mistele, Alexander Allgaier, Wolfgang Frey, Joris van Slageren, Johannes Kästner, René Peters   +8 more
wiley   +1 more source

APLICAÇÃO DE AMIDOXIMAS COMO CATALISADORES DA REAÇÃO DE ALILAÇÃO POR ALILTRIFLUOROBORATO DE POTÁSSIO EM MEIO BIFÁSICO

Química Nova
We describe the application of an amidoxime as catalyst in the synthesis of homoallylic alcohols from the allylation reaction of aldehydes with different features using potassium allyltrifluoroborate. The reaction was conducted with a catalytic amount of
Dmistocles de Andrade, João Rufino de Freitas Filho, Juliano Carlo Rufino Freitas   +2 more
doaj   +1 more source

Dehydrative Allylic Amination in Water via a Polymer‐Supported Ruthenium Catalyst

ChemSusChem, Volume 19, Issue 12, 26 June 2026.
A green and rapid synthesis of allylamines is achieved using a polymer‐supported ruthenium catalyst. This dehydrative reaction between allyl alcohols and amines proceeds entirely in water without organic solvents or inert gas. The process completes in just 1 h, and the solid catalyst allows for easy filtration, offering a sustainable route to valuable ...
Shota Mizuno, Yasuhiro Kubota, Toshiyasu Inuzuka, Kazumasa Funabiki, Munenori Inoue   +4 more
wiley   +1 more source

Reductively Stable Platinum Catalyst Enabling Metallaphotoredox Reductive Allylation of Ketones, Aldehydes, and Imines

ChemistryEurope
This work demonstrates the catalytic reductive allylation of ketones, aldehydes, and imines using a synergistic platinum/photoredox catalyst system. Notably, this method is applicable even to acetophenone derivatives, affording homoallylic alcohols that ...
Junpei Shimosato, Kousei Nishimura, Bunta Fukuyo, Yohei Shimizu, Masaya Sawamura, Yusuke Masuda   +5 more
doaj   +1 more source

Indium-Mediated Allylation of Carbonyl Compounds in Ionic Liquids: Effect of Salts in Ionic Liquids

Molecules, 2018
The In-mediated allylation of carbonyl compounds can be performed in various types of solvents including ionic liquids. However, we have found that in [bmim][BF4] (where bmim = 1-butyl-3-methylimidazolium), the In-mediated coupling of crotyl bromide with
Tsunehisa Hirashita, Fusako Takahashi, Takayuki Noda, Yuji Takagi, Shuki Araki   +4 more
doaj   +1 more source

Allylation of Functionalized Aldehydes by Potassium Allyltrifluoroborate Catalyzed by 18-Crown-6 in Aqueous Media

Molecules, 2012
An efficient method for the allylation of aldehydes containing a broad range of functional groups using potassium allyltrifluoroborate is described.
Roberta A. Oliveira, Paulo H. Menezes, Caio F. Melo, Juliano C. R. Freitas, Fernanda C. G. Barbosa   +4 more
doaj   +1 more source