140887-58-7

Upstream product

• 114362-54-8 5-azido-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde 
• 603-35-0 triphenylphosphine 
• 150098-95-6 (Z)-2-Azido-3-(5-azido-3-methyl-1-phenyl-1H-pyrazol-4-yl)-acrylic acid ethyl ester 

Downstream Products

• 140887-64-5 3-Methyl-1-phenyl-7-propylamino-1,6-dihydro-pyrazolo[3,4-d][1,3]diazepine-5-carboxylic acid ethyl ester 
• 150099-20-0 C₄₃H₃₈N₅O₄P 
• 150098-96-7 C₄₁H₃₃N₆O₂P 
• 140887-62-3 2-(4-Chloro-phenyl)-1-[(E)-4-chloro-phenylimino]-6-methyl-4-phenyl-2,4-dihydro-1H-2,3,4,5,8a-pentaaza-cyclobuta[f]azulene-8-carboxylic acid ethyl ester 
• 140887-65-6 3-Methyl-1-phenyl-7-phenylamino-1,6-dihydro-pyrazolo[3,4-d][1,3]diazepine-5-carboxylic acid ethyl ester 
• 140887-59-8 6-Methyl-2,4-diphenyl-1-[(E)-phenylimino]-2,4-dihydro-1H-2,3,4,5,8a-pentaaza-cyclobuta[f]azulene-8-carboxylic acid ethyl ester 
• 140887-66-7 3-Methyl-1-phenyl-7-p-tolylamino-1,6-dihydro-pyrazolo[3,4-d][1,3]diazepine-5-carboxylic acid ethyl ester 
• 140887-60-1 6-Methyl-4-phenyl-2-p-tolyl-1-[(E)-p-tolylimino]-2,4-dihydro-1H-2,3,4,5,8a-pentaaza-cyclobuta[f]azulene-8-carboxylic acid ethyl ester 
• 140887-63-4 7-Ethylamino-3-methyl-1-phenyl-1,6-dihydro-pyrazolo[3,4-d][1,3]diazepine-5-carboxylic acid ethyl ester 

Relevant academic research and scientific papers

One-pot Synthesis of a New Class of Fused 2,4-Diimino-1,3-diazetidines by an Aza-Wittig/ Cycloaddition of Carbodiimides Process

The new tricyclic ring system 3 is synthesized in a one-pot reaction from bis(iminophosphorane) 1 and two equivalents of aryl isocyanate; compound 1 also reacts with one equivalent of isocyanate to give the bicyclic diazepine 6; the crystal structure of compound 3 and 6 are determined.