Results 91 to 100 of about 12,869 (241)
Chemoselectively Functionalized Ketoesters by Halogenative C–C Bond Cleavage of Cyclic Diketones
MoleculesHaloketoesters are synthetic intermediates in various cyclization reactions that facilitate the production of biologically active compounds. Nonetheless, the selective synthesis of dihaloketoesters and trihaloketoesters, which are expected to be highly ...
Hideyasu China +6 more
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N-halossacarinas: reagentes úteis (e alternativos) em síntese orgânica
Química Nova, 2006 N-halosaccharins proved to be useful and alternative reagents for diverse organic transformations, such as halogenation of aromatic compounds, benzylic and alpha-carbonylic positions, cohalogenation of alkenes, oxidation of secondary alcohols, etc. Their
Soraia P. L. de Souza +2 more
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Journal of Applied Toxicology, EarlyView.ABSTRACT Bisphenol A (BPA) is increasingly replaced by structural analogs, yet their safety remains insufficiently characterized. This study investigated whether BPA and selected analogs, bisphenol AF (BPAF), bisphenol AP (BPAP), bisphenol P (BPP), and bisphenol E (BPE), induce cytotoxicity through activation of endoplasmic reticulum (ER) stress and ...
Rafia Afroze Rifa, Ramon Lavado
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Enzymatic Halogenation of Tryptophan on a Gram Scale
, 2015 Frese M, Sewald N. Enzymatic Halogenation of Tryptophan on a Gram Scale. Angewandte Chemie International Edition. 2015;54(1):298-301.Halogenated arenes are important building blocks in medicinal and agrochemistry.
Frese, Marcel ; https://orcid.org/ +3 more
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Effect of Halogenation Treatment to Solder on Anodic Soldering [PDF]
The effect of the halogenation treatment of tin based solder on the wettability of tin based solder to glass was examined, and that treatment was applied to anodic soldering - soldering of glass utilizing the principle of anodic bonding. The halogenation
Ikeuchi, Kenji, Takahashi, Makoto
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T‐Shaped Stibenium(III) Cation: Hydrostibination Without Sb─H Bond
Angewandte Chemie, Volume 138, Issue 38, 14 September 2026.A cationic, structurally constrained stibenium platform mediates anti‐Markovnikov hydrostibination of alkenes via element–ligand cooperativity (ELC), thereby bypassing the need for weak Sb─H bonds. ABSTRACT The hydrostibination of alkenes represents a largely underdeveloped transformation, owing to the intrinsic lability of the required Sb─H reagents ...
Ekta Nag +4 more
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Selective G-Quadruplex DNA Recognition by a New Class of Designed Cyanines
Molecules, 2013 A variety of cyanines provide versatile and sensitive agents acting as DNA stains and sensors and have been structurally modified to bind in the DNA minor groove in a sequence dependent manner. Similarly, we are developing a new set of cyanines that have
Markus W. Germann +8 more
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Binuclear Copper‐Dependent Oxidative Enzymes Involved in Fungal Natural Product Modifications
Journal of the Chinese Chemical Society, EarlyView.This article summarizes recent biochemical characterizations of a new enzyme family named by the authors as binuclear copper‐dependent oxidative enzymes (BiNCOs). Found in fungal natural product biosynthesis, BiNCOs catalyze diverse CH functionalization reactions, including C(sp3)H halogenation, C(sp3)H hydroxylation, C(sp3)O macrocyclization, and ...
Chen‐Yu Chiang, Masao Ohashi, Yi Tang
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Palladium-catalyzed cross coupling reactions of 4-bromo-6H-1,2-oxazines
Beilstein Journal of Organic Chemistry, 2009 A number of 4-aryl- and 4-alkynyl-substituted 6H-1,2-oxazines 8 and 9 have been prepared in good yields via cross coupling reactions of halogenated precursors 2, which in turn are easily accessible by bromination of 6H-1,2-oxazines 1. Lewis-acid promoted
Reinhold Zimmer +5 more
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Molecules, 2012 The Brønsted-acidic ionic liquid 1-methyl-3-(4-sulfobutyl)imidazolium triflate [BMIM(SO3H)][OTf] was demonstrated to act efficiently as solvent and catalyst for the halogenation of activated organic compounds with N-halosuccinimides (NXS) under ...
Stojan Stavber +3 more
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