Results 101 to 110 of about 11,578 (241)
1,1‐and 1,2‐Diborylalkenes: Preparation and Synthetic Applications
In this review, we highlight recent advances in the synthesis and reactivity of 1,1‐diborylalkenes and 1,2‐diborylalkenes, along with various transformations leading to C‐C, C‐heteroatom, and multicomponent products. By providing a comprehensive and practical resource, this review aims to assist researchers in exploring the synthetic utility of 1,1 and
Jayaram Vankudoth +2 more
wiley +1 more source
The cine‐substitution of 2‐aryl‐1‐chlorovinyl p‐tolyl sulfoxides with lithium amides yields β‐enamino sulfoxides with high efficiency. β‐Enamino sulfoxides are desulfinylated via the sulfoxide/magnesium exchange reaction with isopropylmagnesium chloride to yield enamines.
Tsutomu Kimura +4 more
wiley +1 more source
Halogenation of microcapsule walls
Procedure for halogenation of confining walls of both gelatin and gelatin-phenolic resin capsules is similar to that used for microencapsulation. Ten percent halogen content renders capsule wall nonburning; any higher content enhances flame-retardant ...
Schaab, C. K. +2 more
core
Palladium catalyzed ortho-halogenation of 2-arylbenzothiazole and 2,3-diarylquinoxaline
A palladium catalysed ortho-halogenation strategy has been developed using benzothiazoles and quinoxalines as the directing substrates. This method provides mono-o-halogenated product at the other available ortho site of a mono-ortho substituted 2 ...
Khatun, Nilufa +4 more
core +1 more source
The de-halogenation of highly concentrated halo-organic compounds using Zero Valent Iron entrapped in silica matrices as a catalyst was investigated. This study aimed to evaluate the effectiveness of the Zero Valent Iron-entrapped organically modified ...
Gifty Sara Rolly +4 more
doaj +1 more source
Redox‐active guanidines, comprising guanidino‐functionalized aromatics (GFAs) and redox‐active urea azines (RAAs), are electron donors and strong Lewis and Brønsted bases that are used in several applications. They act as redox‐active ligands in bistable coordination compounds and as reagents in dehydrogenative coupling reactions and proton‐coupled ...
Hans‐Jörg Himmel
wiley +1 more source
Halogenation through Deoxygenation of Alcohols and Aldehydes
An efficient reagent system, Ph3P/XCH2CH2X (X = Cl, Br, or I), was very effective for the deoxygenative halogenation (including fluorination) of alcohols (including tertiary alcohols) and aldehydes. The easily available 1,2-dihaloethanes were used as key
Ji-Chang Xiao (1457842) +2 more
core +1 more source
A series of 2,3-dihalo-1,1,1,4,4,4-hexafluorobutanes and 2-halo-1,1,1,4,4,4-hexafluorobut-2-enes were prepared from commercially available hydrofluoroolefins 1,1,1,4,4,4-hexafluorobut-2-enes and their 1H, 19F and 13C chemical shifts measured.
Nataliia V. Kirij +4 more
doaj +1 more source
Schematic illustration of the workflow from DNA sequence‐based research to expression in shaking flasks and subsequent purification via IMAC. The obtained enzymes broaden the toolbox of enzymes used for halogenation reactions with differing catalytic properties and tolerances to reaction‐related conditions.
Sonja Schönrock +2 more
wiley +1 more source
Photocatalytic Vanadium‐Mediated Amination of Benzene With Hydroxylamine
Photochemical activation of N‐phenylphenothiazine (PPT) enables a selective direct benzene amination with hydroxylamine in the presence of various vanadium catalysts under mild reaction conditions. Spectroscopic and kinetic analyses identify a key vanadium(IV)‐hydroxylamine intermediate, elucidate the crucial roles of the acidic medium, the ...
Dana Králová +6 more
wiley +1 more source

