210627-92-2

Basic information

• Product Name: 2,2,6,6-Tetrakis-(4-chloro-phenyl)-4-phenyl-1,5-dioxa-4λ⁵-phospha-spiro[3.3]heptane
• CAS NO: 210627-92-2
• Molecular Weight: 638.357
• Mol File: 210627-92-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,2,6,6-Tetrakis-(4-chloro-phenyl)-4-phenyl-1,5-dioxa-4λ⁵-phospha-spiro[3.3]heptane(CAS DataBase Reference)
• NIST Chemistry Reference: 2,2,6,6-Tetrakis-(4-chloro-phenyl)-4-phenyl-1,5-dioxa-4λ⁵-phospha-spiro[3.3]heptane(210627-92-2)
• EPA Substance Registry System: 2,2,6,6-Tetrakis-(4-chloro-phenyl)-4-phenyl-1,5-dioxa-4λ⁵-phospha-spiro[3.3]heptane(210627-92-2)

Safety Data

• Hazardous Substances Data: 210627-92-2(Hazardous Substances Data)

Upstream product

• 210627-74-0 2-{[2,2-Bis-(4-chloro-phenyl)-2-hydroxy-ethyl]-phenyl-phosphinoyl}-1,1-bis-(4-chloro-phenyl)-ethanol 
• 10311-08-7 dimethyl(phenyl)phosphine oxide 
• 90-98-2 4,4'-Dichlorobenzophenone 

Downstream Products

• 2642-81-1 1,1-bis(p-chlorophenyl)ethene 

Relevant articles and documents

Synthesis and double olefin extrusion of 2,2,6,6-tetraaryl-1,5-dioxa-4λ5-phosphaspiro[3.3]heptanes

The title compounds were synthesized by cyclization and dehydration of the corresponding bis(β-hydroxyalkyl)phosphine oxides with Appel's reagent. Since these compounds were very moisture sensitive to hydrolyze to the starting bis(β-hydroxyalkyl)phosphine oxides except for tetrakis(4-nitrophenyl) derivative, their in-situ generation and thermolysis were carried out to give two molar equivalents of the corresponding olefins in good yield in sharp contrast to tetrakis(trifluoromethyl) derivative.