40425-94-3

Basic information

• Product Name: Tetraphospholane, 1,2,3,4-tetraphenyl-
• CAS NO: 40425-94-3
• Molecular Formula: C25H22P4
• Molecular Weight: 446.345
• Mol File: 40425-94-3.mol

Chemical Properties

• CAS DataBase Reference: Tetraphospholane, 1,2,3,4-tetraphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Tetraphospholane, 1,2,3,4-tetraphenyl-(40425-94-3)
• EPA Substance Registry System: Tetraphospholane, 1,2,3,4-tetraphenyl-(40425-94-3)

Safety Data

• Hazardous Substances Data: 40425-94-3(Hazardous Substances Data)

Upstream product

• 75-09-2 dichloromethane 
• 638-21-1 phenylphosphane 
• 28240-64-4 bis(diphenylphosphino)methane 
• 3376-52-1 pentaphenylcyclopentaphosphane 
• 15968-90-8 Kaliumhydrogenphenylphosphid 

Downstream Products

• 879713-22-1 cyclo-1,4-(BH₃)2(P₄Ph₄CH₂) 
• 879280-58-7 cyclo-1,4-(BH₃)2(P₄Ph₄CHLi) 
• 445379-72-6 Os₃(CO)11(C₆H₅)4P₄CH₂ 
• 1024-07-3 phenyl Lawesson reagent 
• 122039-27-4 woollins’ reagent 

Relevant articles and documents

STRUTURAL CHARACTERIZATION OF 1,2,4,5-TETRAPHENYLCYCLO-3,6-DICARBA-1,2,4,5-TERAPHOSPHINE: A HIGHLY FOLDED CHAIR CONFORMATION

The title compound crystallyzed in the monoclynic space group P21/c, with the followingunit cell parameters: a = 11.235(8), b = 8.473(2), c = 26.136(10) Aengstroem, β = 102.07(5) grad, V = 2432(3) Aengstroem3, Z = 4.1657 unique data were used to solve (direct methods) and refine the structure to give R = 0.126 and Rw = 0.118.The six-membered ring system is in a highly folded chair conformation with the phenyl group substituents on the phosphorous atoms oriented in the equatorial positions.The dihedral angles of the P-CH2-P plane with the P4 basal plane is a remarkable 101.8 grad (avarage).This dihedral angle is the closestto perpendicular ever observed for a monocyclic ring system.

Linear Oligophosphaalkanes, XIX. - Partial Alkylation of Phenylphosphane with Dihalomethanes CH2X2 (X = Cl, Br) - A Facile Synthesis of Methylenebis(phenylphosphane), HPhP-CH2-PPhH

The reaction of PhPHNa with CH2X2 (X = Cl, Br) in tetrahydrofuran affords methylenebis(phenylphosphane), HPhP-CH2-PPhH (2), phenylphosphane, methylphenylphosphane, PhPHMe, and 1,2,3,4-tetraphenylcyclo-5-carba-1,2,3,4-tetraphosphane, CH2(PPh)4 (3).HPhP-CH2-PPhH (2) may be obtained in a facile one-step synthesis with yields up to 70percent by reaction of PhPH2 with CH2Cl2 and KOH in dimethyl sulfoxide/H2O or dimethylformamide/H2O.The formation of PhPHMe and CH2-(PPh4)4 may be explained by a reaction scheme including P-phenylphosphaalkene PhP=CH2 and HPhP-CH2Cl as reactive intermediates.The reactions between PhPHM (M = Na, K) and CH2Cl2 or CH2Br2 respectively, have been studied by independent experiments.