6121-47-7

Upstream product

• 25769-36-2 1,3,4-triphenyl-1,2-diaza-1,3-butadiene 
• 451-40-1 phenyl benzyl ketone 
• 59-88-1 phenylhydrazine hydrochloride 
• 100-63-0 phenylhydrazine 

Downstream Products

• 3469-20-3 2,3-diphenyl-1H-indole 
• 40849-04-5 2,4,5-triphenyl-2,3-pyrazol-1(5H)-one 
• 81963-70-4 5-(2-Hydroxyphenyl)-1,3,4-triphenylpyrazole 
• 6121-45-5 1-methyl-2,3-diphenyl-1H-indole 
• 79310-02-4 Phenylazostilbene 
• 380600-37-3 3,5,6-triphenyl-3,6-dihydro-1-oxa-3,4-diazin-2-one 
• 112382-69-1 4-(2,4,5-Triphenyl-2H-pyrazol-3-yl)-phenol 
• 54124-03-7 2,4,5-triphenyl-2H-[1,2,3]diazarsole 

Relevant academic research and scientific papers

New heterocyclic precursors for thermal generation of reactive, electron-rich 1,2-diaza-1,3-butadienes

Figure presented The preparation and thermolysis of new stable heterocyclic precursors of 1,2-diaza-1,3-butadienes is described. The resulting reactive diazadienes are trapped in situ with N-phenyldiazamaleimide. The effect of precursor structure on the temperature at which the diazadienes are generated is discussed.

Benzothiadiphosphole as phosphorus donating reagent for a new route to 2H-1,2,3-diazaphosphole derivates

Conjugated azoalkenes 2 react at reflux toluene with fused benzothiadiphosphole 1 (or 4) to give the diazaphosphole 3 in 25-52% yields. With this route it is possible to isolate the so far unknown 3a which is difficult to obtain in other reported conditions. The P atom involved in this cydoaddition is the one between the two S atoms.

N-Alkenyl-3,5-Pyrazolidinediones from Ketone Hydrazones, PCl3 and Malonic acid.

The title compounds 3, a new series of 3,5-pyrazolidinediones, have been synthesized at room temperature by a one-pot reaction between ketone hydrazone 1, PCl3 and malonic acid.Changing the order of addition of reagents, or their simultaneous addition, gave identical results.In all the procedures the yields are good and in the cases a,b,c and g the E-alkenyl isomer was obtained as the exclusive isomer.A dual mechanism which depends on the order of addition of the reactants is hypothesised.

Addition of Dimethyl Acetylenedicarboxylate to 1,2,3-Trisubstituted Indoles having no Hydrogen on the Carbon Atom attached to C-2.

Addition of dimethyl acetylenedicarboxylate to seven 1,2,3-trisubstituted indoles having no hydrogen on the carbon atom attached to C-2, has yielded fourteen adducts which are mainly fused γ-lactones, but which include a new phenanthridine-dione, a novel spiro-dihydroindole, and a carbazole formed by the loss of methane.All structures were elucidated by spectroscopy.