149561-12-6

Basic information

• Product Name: 4-Phenyl-3,3a,4a,5,7a,7b-hexahydro-phospholo[3,2-c;4,5-c']dipyrazole 4-oxide
• CAS NO: 149561-12-6
• Molecular Weight: 260.235
• Mol File: 149561-12-6.mol

Chemical Properties

• CAS DataBase Reference: 4-Phenyl-3,3a,4a,5,7a,7b-hexahydro-phospholo[3,2-c;4,5-c']dipyrazole 4-oxide(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Phenyl-3,3a,4a,5,7a,7b-hexahydro-phospholo[3,2-c;4,5-c']dipyrazole 4-oxide(149561-12-6)
• EPA Substance Registry System: 4-Phenyl-3,3a,4a,5,7a,7b-hexahydro-phospholo[3,2-c;4,5-c']dipyrazole 4-oxide(149561-12-6)

Safety Data

• Hazardous Substances Data: 149561-12-6(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 
• 20342-00-1 1-Phenylphosphole 

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.