Results 31 to 40 of about 37,334 (332)

Complexity-generating hydration reactions via gold-catalyzed addition of boronic acids to alkynes [PDF]

open access: yes, 2012
Boronic acids can serve as organic soluble substitutes for water molecules in the metal-catalyzed hydration of alkynes. The Au-catalyzed addition of boronic acids to alkynes provides an alternative method for enolate generation, which proceeds under ...
Sheppard, TD
core   +1 more source

A convenient catalyst system for microwave accelerated cross-coupling of a range of aryl boronic acids with aryl chlorides

open access: yesBeilstein Journal of Organic Chemistry, 2007
A convenient microwave accelerated cross-coupling procedure between aryl chlorides with a range of boronic acids has been developed. An explanation for the low reactivity of highly fluorinated boronic acids in Suzuki coupling is provided.
Matthew L. Clarke   +4 more
doaj   +1 more source

Robust NHC-palladacycles-catalyzed Suzuki−Miyaura cross-coupling of amides via C-N activation

open access: yesGreen Synthesis and Catalysis, 2020
Robust NHC-palladacycles (NHC = N-heterocyclic carbene) were synthesized and exhibited high catalytic activity towards Suzuki−Miyaura cross-coupling reactions between inactive amides with N-acetyl/benzyl substituents and aryl boronic acids, producing ...
Qinyue Deng   +3 more
doaj   +1 more source

Boronic acid and boronic ester containing polyoxometalates

open access: yesDalton Transactions, 2016
Three organoboron functionalized polyoxometalates have been synthesized using Schiff base chemistry including a boronic acid, its methyl ester and its trimethylene glycol ester.
Karoui, H, Ritchie, C
openaire   +4 more sources

Mechanistic analysis of an asymmetric palladium-catalyzed conjugate addition of arylboronic acids to β-substituted cyclic enones. [PDF]

open access: yes, 2015
An asymmetric palladium-catalyzed conjugate addition reaction of arylboronic acids to enone substrates was investigated mechanistically. Desorption electrospray ionization coupled to mass spectrometry was used to identify intermediates of the catalytic ...
Boeser, Cornelia L   +5 more
core   +3 more sources

Copper(I)-Phosphinite Complexes in Click Cycloadditions: Three-Component Reactions and Preparation of 5-Iodotriazoles [PDF]

open access: yes, 2016
© 2016 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.The remarkable activity displayed by copper(I)–phosphinite complexes of general formula [CuBr(L)] in two challenging cycloadditions is reported: a) the one-pot azidonation/cycloaddition of
Crosbie, P   +3 more
core   +2 more sources

Consecutive cross-coupling reactions of 2,2-difluoro-1-iodoethenyl tosylate with boronic acids: efficient synthesis of 1,1-diaryl-2,2-difluoroethenes

open access: yesBeilstein Journal of Organic Chemistry, 2013
The cross-coupling reactions of 2,2-difluoro-1-iodoethenyl tosylate (2) with 2 equiv of boronic acids in the presence of catalytic amounts of Pd(OAc)2 and Na2CO3 afforded the mono-coupled products 3 and 5 in high yields.
Ju Hee Kim, Su Jeong Choi, In Howa Jeong
doaj   +1 more source

DSSC Anchoring Groups: A Surface Dependent Decision [PDF]

open access: yes, 2014
Electrodes in dye sensitised solar cells (DSSCs) are typically nanocrystalline anatase TiO2 with a majority (101) surface exposed. Generally the sensitising dye employs a carboxylic anchoring moiety through which it adheres to the TiO2 surface.
Bowler, David R., O'Rourke, Conn
core   +2 more sources

An improved synthesis of (2E,4Z)-6-(benzyloxy)-4-bromohexa-2,4-dien-1-ol [PDF]

open access: yes, 2007
An improved synthesis of (2E,4Z)-6-(benzyloxy)-4-bromohexa-2,4-dien-1-ol has been devised. This new route increases the throughput and yield of the diene product by circumventing a low yielding preparation of boronic acid intermediate as well as removing
Clarke, Paul A.   +3 more
core   +1 more source

Genetically encoded fluorescent redox probes. [PDF]

open access: yes, 2013
Redox processes are involved in almost every cell of the body as a consequence of aerobic life. In the past decades, redox biology has been increasingly recognized as one of the key themes in cell signaling.
Ai, Hui-Wang, Ren, Wei
core   +3 more sources

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