125657-28-5

Basic information

• Product Name: 6-Methyl-4-phenyl-3a,6a-dihydro-3H-1,2-diaza-4-phospha-pentalene 4-oxide
• CAS NO: 125657-28-5
• Molecular Weight: 232.222
• Mol File: 125657-28-5.mol

Chemical Properties

• CAS DataBase Reference: 6-Methyl-4-phenyl-3a,6a-dihydro-3H-1,2-diaza-4-phospha-pentalene 4-oxide(CAS DataBase Reference)
• NIST Chemistry Reference: 6-Methyl-4-phenyl-3a,6a-dihydro-3H-1,2-diaza-4-phospha-pentalene 4-oxide(125657-28-5)
• EPA Substance Registry System: 6-Methyl-4-phenyl-3a,6a-dihydro-3H-1,2-diaza-4-phospha-pentalene 4-oxide(125657-28-5)

Safety Data

• Hazardous Substances Data: 125657-28-5(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 
• 30540-42-2 3-methyl-1-phenylphosphole 

Downstream Products

• 125657-36-5 4-Methyl-2-phenyl-2-phosphabicyclo<3.1.0>hex-3-en 
• 125657-32-1 4-Methyl-2-phenyl-2-phospha-bicyclo[3.1.0]hex-3-ene 2-oxide 
• 125657-25-2 4-Phenyl-3a,6a-dihydro-3H-1,2-diaza-4-phospha-pentalene 4-oxide 

Relevant articles and documents

REACTIVITY OF CYCLOPENTENYL-ANION ANALOGOUS HETEROCYCLES: SYNTHESIS AND 1,5-ELECTROCYCLISATION OF HOMOPHOSPHOLE

The key step of a novel homophosphole synthesis is the reaction of the phospholes 3 with diazomethane in the presence of water leading surprisingly to the oxidized 1,3-dipolar cycloadducts 7.The 1,5-electrocyclization of homophosphole was observed by the racemization of optically active 10c at 120 deg C to be 641 times slower than of homofuran 1a.The activation barrier seems to be largely determined by the barrier of invension at the phosphorus which has to proceed concomitantly.