81467-91-6

Upstream product

• 81467-93-8 5-(4-methylpheyl)pent-4-en-3-one 
• 57-14-7 N,N-Dimethylhydrazine 
• 3160-38-1 (E)-4-p-tolylbut-3-en-2-one 
• 104-87-0 4-methyl-benzaldehyde 
• 166884-41-9 syn-β-N,N-dimethylhydrazonobutyldiphenylphosphine oxide 
• 81467-90-5 (E)-4-(4'-Methylphenyl)-3-buten-2-on-dimethylhydrazon 
• 74-88-4 methyl iodide 

Relevant academic research and scientific papers

An Effective Strategy for the Preparation of α,β-Unsaturated Hydrazones and Pyrazole Derivatives. Synthetic Applications of β-Functionalized Phosphorus Compounds.

β-Enehydrazino phosphonium salts 3 as well as β-hydrazono phosphine oxides 6 and phosphonates 7 are obtained from hydrazines, propargylphosphonium salts 2 and phosphorylated allenes 4 and 5. β-Functionalized compounds 3, 6 and 7 are used for the synthesis of α,β-unsaturated hydrazones 1, pyrazoline 14 and pyrazole derivative 15.

Dimethylhydrazones of Substituted 4-Phenyl-3-buten-2-ones

Some substituted 4-phenyl-3-buten-2one dimethylhydrazones 2 are synthesized, and the separation of the liquid E/Z isomers is attempted. (E)-4-(4'-Methylphenyl)-3-buten-2-one dimethylhydrazone (4) crystallizes, and its (1)H-, (13)C- and (15)N-nmr spectra a