80657-55-2

Upstream product

• 14274-42-1 dimethyl-(4,4,5,5-tetramethyl-[1,3,2]dioxaphospholan-2-yl)-amine 
• 959-28-4 1,4-diphenylbut-2-ene-1,4-dione 

Downstream Products

• 80615-45-8 Tetramethyl 2,2,3,3 dimethylamino-5 diphenyl 7-10 tetraoxa 1,4,6,11 phospha (V) spiro 4.4. nonene 7-8, 9-10 n^o 
• 495-71-6 phenacylacetophenone 
• 106890-32-8 Tetramethyl 2,2,3,3 methoxy 5 diphenyl 7-10 tetraoxa 1,4,6,11 phospha (V) spiro nonene 7-8, 9-10 n^o 

Relevant academic research and scientific papers

REACTIONS DES COMPOSES DU PHOSPHORE TRICOORDINE AVEC LES CETONES ET LES ESTERS ETHYLENIQUES: PROTOTROPIE, CYCLISATION, EXPANSION DE CYCLE

Addition of trivalent phosphorus compounds with α,β-ethylenic ketones and esters leads to examples of prototropy or cyclisation or rearrangement with ring expansion from 5 to 7 atoms.

REACTIONS DES DIOXAPHOSPHOLANES AVEC LES ETHYLENIQUES CARBONYLES ORIENTATION VERS LA FORMATION D'YLURES OU DE PHOSPHORANES

The reactions of cyclic phosphites and aminophosphines 1 to 4 with trans dibenzoyleethylene, methylfumarate, benzalacetone, 2-pentenoicacid-4-one-methylester and benzalacetophenone has been investigated.These reactions lead either to ylid formation 23, 24

ATTEMPTS TO RATIONALIZE THE CHEMICAL REACTIVITY OF THE 1-3 DIPOLAR SPECIES OBTAINED WHEN A PHOSPHITE REACTS WITH ACTIVATED ETHYLENIC OR ACETYLENIC KETONES OR ESTERS

Addition of trivalent phosphorus compounds with α,β ethylenic ketones and esters leads to examples of prototropy or cyclisation or rearrangement with ring expansion from 5 to 7 atoms.When trivalent phosphorus compounds react with acetylenic ketones and es