91070-23-4

Basic information

• Product Name: 1,2-di-tert-butyl-1,2-di(p-tolyltelluro)diphosphane
• CAS NO: 91070-23-4
• Molecular Weight: 613.644
• Mol File: 91070-23-4.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 1,2-di-tert-butyl-1,2-di(p-tolyltelluro)diphosphane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-di-tert-butyl-1,2-di(p-tolyltelluro)diphosphane(91070-23-4)
• EPA Substance Registry System: 1,2-di-tert-butyl-1,2-di(p-tolyltelluro)diphosphane(91070-23-4)

Safety Data

• Hazardous Substances Data: 91070-23-4(Hazardous Substances Data)

Upstream product

• 32294-57-8 bis(4-methylphenyl)ditelluride 
• 61695-12-3 tri-tert-butylcyclotriphosphane 
• 79898-85-4 1,2-di-tert-butyl-1,2-dichlorodiphosphane 
• 513-81-5 2,3-dimethyl-buta-1,3-diene 
• 25979-07-1 tert-butyldichlorophosphine 
• 87869-43-0 2,3,4-Tri-tert-butyl-[1,2,3,4]telluratriphosphetane 
• 78190-51-9 p-Tolyltelluro-diisopropylphosphan 
• 78190-50-8 p-Tolyltelluro-di-tert-butylphosphan 

Relevant articles and documents

Ditelluride-promoted diphosphene transfer from a cyclotriphosphane to 2,3-dimethylbutadiene: characterization of di(aryltelluro)diphosphanes

The cleavage of tri-tert-butylcyclotriphosphane 1 with di(4-methylphenyl)ditelluride 2 leads to 1,2-di-tert-butyl-1.2-di(4-methylphenyltelluro)diphosphane 3 and tetra-tert-butylcyclotetraphosphane.When 1 is heated with 2 in the presence of 2,3-dimethylbutadiene, the diphosphene trapping product 1,2-di-tert-butyl-4,5-dimethyl-1,2-diphosphacyclohex-4-ene 5 can be detected.The salt elimination reaction of tert-butyldichlorophosphane with 4-methylphenyltellurotelluromagnesium bromide leads mainly to 3 and ditelluride 2.Tellurophosphane 6 and 1,2-di-tert-butyl-1,2-di(aryltelluro)diphosphanes 3. 7 (7 : aryl = 2,4,6-triisopropylphenyl) are available in fair yields from di-tert-butylchlorophosphane or 1,2-di-tert-butyl-1,2-dichlorodiphosphane with metal tellurolates.At 90 deg C with 2,3-dimethylbutadiene, 7 acts as a source of 1,2-di-tert-butyldiphosphene trapped as cycloadduct 5. - Keywords: cyclophosphanes / phosphorus-carbon heterocycles / cleavage of phosphorus-phosphorus bonds / di(aryltelluro) diphosphanes / diphosphene transfer.

NOVEL REACTIONS WITH TELLURIUM AND ORGANOTELLURIUM REAGENTS

Novel reactions with elemental tellurium, organic ditellurides and diselenides and or reagents with Te-Li, Se-Li and Te-Si bonds are reviewed.These reagents have been used to prepare new molecules with Te-P, Se-P, Te-C, Te=C, Te-I and Se-I bonds.

TELLURATION AND DE-TELLURIZATION: NEW WAYS FOR THE CLEAVAGE AND FORMATION OF P-P BONDS

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