80154-55-8

Basic information

• Product Name: 1-(5-Ethoxy-7-methyl-9-phenyl-1,4,6-trioxa-5λ⁵-phospha-spiro[4.4]non-7-en-8-yl)-ethanone
• CAS NO: 80154-55-8
• Molecular Weight: 324.313
• Mol File: 80154-55-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-(5-Ethoxy-7-methyl-9-phenyl-1,4,6-trioxa-5λ⁵-phospha-spiro[4.4]non-7-en-8-yl)-ethanone(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(5-Ethoxy-7-methyl-9-phenyl-1,4,6-trioxa-5λ⁵-phospha-spiro[4.4]non-7-en-8-yl)-ethanone(80154-55-8)
• EPA Substance Registry System: 1-(5-Ethoxy-7-methyl-9-phenyl-1,4,6-trioxa-5λ⁵-phospha-spiro[4.4]non-7-en-8-yl)-ethanone(80154-55-8)

Safety Data

• Hazardous Substances Data: 80154-55-8(Hazardous Substances Data)

Upstream product

• 4335-90-4 3-benzylidene acetylacetone 
• 695-11-4 2-Ethoxy-1,3,2-dioxaphospholan 

Relevant articles and documents

APICOPHILICITY OF THE EXOCYCLIC GROUP AND THE STRUCTURE OF 1,3,6-TRIOXA-5λ5-PHOSPHASPIRONON-7-ENES

1.Investigation of the dynamic stereochemistry of 1,3,6-trioxa-5λ5-phosphaspironon-7-enes showed that the apicophilicity of the phenoxy group is higher than that of alkoxy groups.This leads us to suppose that in nucleophilic substitution at a 4-coordinate phosphorus atom higher permutational lability will be possessed by a 5-coordinate intermediate with a phenoxy group than by its alkoxy analog.If in this reaction inversion is observed at the phosphorus atom, then a greater extent of inversion must probably be expected in substitution by a phenoxy group. 2. 13C NMR-spectral data indicate that the regular process of permutational isomerization in the spirophosphoranes investigated includes an intermediate with D3h geometry with a diequatorial arrangement of the dioxaphospholane ring and the axial exocyclic group.This suggests that the permutational-isomerization process goes by the trigonal-twist scheme without affecting the 1,2-oxaphosphol-4-ene ring.