Wyniki wyszukiwania - BazTech

Ograniczanie wyników

2 Polish Journal of Chemistry

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Regioselective Reaction of 2-Hydroxyliminoimidazolidine-O-sulfonate with Benzyl Bromides

Sączewski J., Gdaniec M.

Polish Journal of Chemistry

2008

Vol. 82, nr 11

2107-2113

Triethylaminium 2-hydroxylaminoimidazolidine-O-sulfonate was alkylated at the exocyclic N2 nitrogen atom of the 2-iminoimidazolidine moiety to give 2-benzyl-2- hydro-xylamino-4,5-dihydroimidazolium-O-sulfonates. The structure of products was confirmed by X-ray crystallographic analysis. The obtained compounds upon treatment with carbon disulfide were further converted into bis(2-benzyl amino- 4,5-dihydroimidazol-1-yl)methanethiones.

Unexpected Formation of N-(4-Cyano-2-phenyloxazol-5-yl)benzamide from Benzoyl Cyanide. Evidence for Sulfonate-Assisted Rearrangement of Benzoyl Cyanide into Benzoyl Isocyanide

Sączewski J., Gdaniec M., Brzozowski Z.

Polish Journal of Chemistry

2005

Vol. 79 / nr 12

1889-1894

Experimental evidence for rearrangement of benzoyl cyanide into corresponding isocyanide is provided by the reaction of benzoyl cyanide with triethylaminium 2-hydroxylaminoimidazolidine-O-sulfonate (2) which affords N-(4-cyano-2- phenyloxazol-5-yl)benzamide (4) as a result of the trimerization of benzoyl isocyanide. Compound 4 was further converted into N-acetyl-N-(4-cyano-2-phenyloxazol- 5-yl)acetamide (6) upon heating in acetic acid anhydride. Structure of 6 was confirmed by X-ray crystallographic analysis.