Catalytic reactions of oxetanes with protonic reagents and aprotic reagents leading to novel polymers

NOVEL REAGENTS FOR CREATINE KINASE

The purpose of this investigation was to develop a simple colorimetric method for creatine kinase (CK). The new method is based on the reaction of creatine, formed enzymatically from creatine phosphate and ADP, with different glyoxal compounds. Hydrated glyoxals, such as para-nitrophenyl, 2-thiophene, 4- biphenyl, 4, 4' -biphenyl,α-naphthyl, β-naphthyl, para-chlorophenyl, and styryl were...

Reactions of iodine-nitrene reagents with boranes.

Reactions of the boranes (C6F5)2BR (R = C6F5, Ph, H) with the nitrene-iodine reagents XC6H4SO2N=IPh, X = Me, Cl and MeSO2N=IPh effect the insertion of nitrene into the B–C and B–H bonds affording the species (C6F5)2BN(SO2C6H4X)R (X = Me, R = C6F5 1, Ph 3, H, 4, X = Cl, 5, X = NO2, 7) and (C6F5)2BN(SO2Me)H 6).

Antigen – Antibody Reactions with Labeled Reagents

Transmetalation Reactions Producing Organocopper Reagents

Organocopper reagents constitute a key class of organometallic reagents, with numerous applications in organic synthesis [1]. Their high reactivities and chemoselectivities have made them unique intermediates. Most reports use organocopper reagents of type 1 or 2, which are prepared from organolithiums. This transmetalation procedure confers optimal reactivity, but in many cases it permits only...

Recyclable Mitsunobu reagents: catalytic Mitsunobu reactions with an iron catalyst and atmospheric oxygen.

Aerobic recycling: A catalytic amount of a hydrazine reagent is sufficient to promote Mitsunobu reactions in the presence of triphenylphosphine, an iron catalyst, and air. The active form of the catalyst, an azo species, can be readily generated by iron-catalyzed aerobic oxidation. MS = molecular sieves, Pc = phthalocyanine.