Results 81 to 90 of about 2,558 (239)
, 2014 A simple, cost effective, highly sensitive and rapid kinetic spectrophotometric method was developed for hydrazines by using Thiophene-3-carboxaldehyde (3-Thienaldehyde) and 3-Butenone (E)-1,1,1-trifluoro-4-(3-thienyl) (CF3 enone). CF3 enone was prepared
Subramanian, Selvakumar +2 more
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Toxicological profile for hydrazines [PDF]
prepared by Sciences International, Inc. under subcontract to Research Triangle Institute.205-93-0606Includes bibliographical references (p. 155-182)
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Oxidative Heck Reaction of Glycals and Aryl Hydrazines: A Palladium-Catalyzed C‑Glycosylation
, 2016 An efficient Heck-type C-glycosylation of glycals via the C–N bond cleavage of aryl hydrazines has been developed. The flexibility of the reaction was tested by the substrate scope, consisting of glycals from different carbohydrate origins as well as ...
Le Mai Hoang Kim (1915654) +3 more
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Late‐Stage Functionalization of Peptides on the Solid Phase
Angewandte Chemie International Edition, EarlyView.Peptide modifications are essential to control pharmacodynamic and pharmacokinetic properties of peptide drugs. Consequently, strategies that allow for efficient and rapid incorporation of non‐canonical modifications into peptides in parallel formats are highly sought after.
Marius Werner +2 more
wiley +1 more source
Synthetic methodology for alkyl substituted hydrazines
, 2001 Substituted hydrazines have found many technical and commercial applications and this is reflected in the immense number of such compounds synthesized to date.
Ragnarsson, U,
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Trifluoroacetyl-Activated Nitrogen−Nitrogen Bond Cleavage of Hydrazines by Samarium(II) Iodide
, 2016 Trifluoroacetyl derivatives of hydrazines undergo clean and efficient reductive cleavage of the N−N bond with SmI2 in the presence of MeOH. After N-trifluoroacetylation, acyl-, aryl-, and alkyl-substituted hydrazines are reductively cleaved by this ...
Hui Ding (308976) +1 more
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, 2016 The reaction between monosubstituted hydrazines and Ru(II) vinylidene complexes [RuCl(P∩N)2(CCH(R))]BPh4 (where R = Ph, n-Bu and P∩N = 3,5-dimethyl[1-((2-diphenylphosphino)ethyl)]pyrazole (Me2PyP)) afforded metallacyclobutene derivatives of the general
Jörg Wagler (1565395) +2 more
core +3 more sources
Journal of the Brazilian Chemical Society, 2000 The reactions of triphenylphosphoranylidenesuccinic anhydride with amines, hydrazines and dipolar nitrogen nucleophiles were investigated, and a new method of synthesis of phosphonioum salts containing the fragment RNHC(C=O)CH2CH2PPh3 is described.
Cunha Silvio, Kascheres Albert
doaj
Química NovaTen substituted pyrazolone derivatives were easily synthesized from perfluorinated allylic alcohols, via a straightforward two steps reaction involving a Heck-coupling/isomerization reaction and subsequent condensation of hydrazines.
Nicolas Gouault +4 more
doaj +1 more source