Results 71 to 80 of about 5,187 (206)
Fish Sperm Subpopulations Detection, Separation, and Application: Current State and Trends
Reviews in Aquaculture, Volume 18, Issue 4, September 2026.Modern advances in sperm biology highlight the necessity of recognising intra‐ejaculate heterogeneity as a central concept for advancing both the fundamental understanding of fertilisation processes and the development of artificial reproduction techniques in fishes. ABSTRACT Sperm subpopulations represent a fundamental manifestation of intra‐ejaculate
Viktoriya Dzyuba +2 more
wiley +1 more source
Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis
European Journal of Organic Chemistry, Volume 29, Issue 32, 24 August 2026.In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley +1 more source
Chemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.A series of thirteen (N‐heterocyclic carbene) NHC‐stabilized borenium cations is synthesized from NHC→BH3 complexes via hydroboration and condensation with diols. The novel compounds are fully characterized. Eight crystal structures are presented. Kinetic and NMR data show how the structural features translate to catalytic activity in hydrosilylation ...
Michał Jakubczyk +4 more
wiley +1 more source
Oxazoles as dienophiles in Diels-Alder reactions
, 1986 2-(N-benzyl-N-methylamino)-oxazoles undergo (4+2)-cycloadditions across the C4-C5 bond by electron deficient ...
Paola Pedrini +13 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2013 Polystyrene sulfonate polymer brushes, grown on the interior of the microchannels in a microreactor, have been used for the anchoring of gallium as a Lewis acid catalyst.
Rajesh Munirathinam +7 more
doaj +1 more source
Molecules, 2012 In the presence of trifluoromethanesulfonic acid (TfOH) or bis(trifluoromethane-sulfonyl)imide (Tf2NH), iodosobenzene (PhI=O) efficiently promoted the reactions of dicarbonyl compounds as well as monocarbonyl compounds with nitriles to give 2,4 ...
Yuji Hanzawa, Akio Saito, Nao Hyodo
doaj +1 more source
Triflic anhydride-mediated synthesis of oxazoles
, 2009 N-Acyl amino acid esters undergo triflic anhydride-mediated cyclodehydration to form oxazoles and bisoxazoles in a simple one-pot transformation. © 2008 Elsevier Ltd.
Mecinovic, J +3 more
core +1 more source
Proceedings, 2019 An efficient Microwave (MW)-assisted synthesis of eight new 6-nitrilmethyl-pyrrolo[3,4-b]pyridin-5-ones via a domino process: aza Diels–Alder/N-acylation/aromatization (dehydration–decarboxylation) from their corresponding 2-aminonitrile ...
Manuel A. Rentería-Gómez +4 more
doaj +1 more source
General Methodology for the Preparation of 2,5-Disubstituted-1,3-oxazoles
, 2016 Deprotonation of 2-(phenylsulfonyl)-1,3-oxazole (1) readily provides a useful C-5 carbanion that is reactive with a variety of electrophiles. Aldehydes and ketones are useful substrates, and the formation of 5-iodo- and 5-tri-n-butylstannyl oxazoles ...
Liangfeng Fu (1863826) +1 more
core +1 more source
Stereoselective Direct Copper-Catalyzed Alkenylation of Oxazoles with Bromoalkenes
, 2016 A copper-catalyzed direct alkenylation of oxazoles with bromoalkenes has been developed. The method is both regio- and stereoselective and tolerates a variety of functional groups.
Sandrine Piguel (2145475) +3 more
core +1 more source