Reaction of 4-phosphoranylidene-5(4H)-oxazolones with acylating agents

• Autorzy: Mazurkiewicz R. , Grymel M.
• Języki publikacji: EN

Abstrakty

EN

Acyl iodides and bromides give in reaction with ylides 1 the expected 4-C- or O-acylation products 2 or 3. In contrast to acyl ioides and bromides, acyl chlorides give in reaction with the ylides 1 Witting-like reaction products 4(4-(1-chloroalkylidene)-5(4H)-oxazolones), whereas benzoyl fluoride gives 4-(1-benzoyloxybenzylidene)-5(4H)-oxazolones. Some evidence points to a mechanism of the formation of Witting-like reaction products involving O-acylated ylides as intermediates.

Słowa kluczowe

EN

4-phosphoranylidene-5(4H)-oxazolones; O-acylation; 4-C-acylation; 4-(1-haloalkylidene)-5(4)-oxazolones; Witting-like reaction products; mechanism

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 1998
• Tom: Vol. 72, nr 3
• Strony: 537--547
• Opis fizyczny: Bibliogr. 12 poz., tab.

Twórcy

autor

Mazurkiewicz R.

autor

Grymel M.

• Institute of Organic Chemistry and Technology The Silesian Technical University ul. Krzywoustego 4 44-100 Gliwice Poland,