ChemInform Abstract: REACTION OF PRIMARY CHLOROPHOSPHINES WITH AZOMETHINES AND ACETYLACETONE

Abstract

Ethyl‐dichlor‐phosphin (I) reagiert mit Acetylaceton (II) in Gegenwart von Essigsäure zum Dioxadiphospha‐bicyclo‐heptanderivat (IV), das an der Luft zur Verbindung (V) hydrolysiert.

Reactions of halophosphines with conjugated heterodienes

“…57 Finally, it should be noted that ethyl(dichloro)phosphine reacts in acetic acid with acetylacetone in its diketone form rather than in its enol form. 58 Reactions of enamino ketones 47 (nitrogen analogues of the diketones 42) with alkyl phosphorodichloridites yield azaanalogues of dioxaphosphorinines 43, viz., 4-alkylidene-4H-1,3,2oxazaphosphorinines 48. 51,59 The reaction of enamino ketones 47 with dialkyl phosphorochloridites halts in the stage of N-phosphorylation of the amino group and the formation of acyclic dialkyl phosphoramidites 49.…”