28766-50-9Relevant academic research and scientific papers
Catalytic hydrophosphorylation of alkyl- and acylhydrazones
Matveeva,Podrugina,Kolesnikova,Prisyazhnoi,Karateev,Zefirov
experimental part, p. 418 - 424 (2011/02/17)
N-Boc- and N-acylhydrazino phosphonates were obtained for the first time by hydrophos- phorylation of the appropriate hydrazones of aliphatic and aromatic aldehydes and heterocyclic and aliphatic ketones in the presence of [tetra(tert-butyl)phthalocyanine
Reaction of carbonyl ylides with chloroform
Bekhazi, Michel,Lawrynowicz, Witold,Warkentin, John
, p. 1507 - 1510 (2007/10/02)
Carbonyl ylides 2, generated by thermolysis of alkoxyoxadiazolines 1 in chloroform, react with chloroform to form ketals (3) of 1,1,1-trichloropropanone.The isotope effect at 80 deg C, determined by analysis of products from thermolysis of 1 in mixed solvent (CHCl3/CDCl3, both in large excess) was estimated to be kH/kD = 5.A mechanism involving concerted C-Cl and C-H bond formation between the ylide C atoms and the Cl and H atoms of chloroform is proposed.The ketals of 1,1,1-trichloropropanone are the first to be reported. Key words: carbonyl ylide, reaction with chloroform; chloroform, reaction with carbonyl ylides; ketals, of 1,1,1-trichloropropanone; 1,1,1-trichloropropanone, ketals of
Photolysis of 2-Alkoxy-Δ3-1,3,4-oxadiazolines. A New Route to Diazoalkanes
Majchrzak, Michael W.,Bekhazi, Michel,Tse-Sheepy, Irene,Warkentin, John
, p. 1842 - 1845 (2007/10/02)
2-Alkoxy-2,5,5-trialkyl-Δ3-1,3,4-oxadiazolines (2), when photolyzed in solution with 300-nm light, afford the appropriate diazoalkane (3) and ester (4) in high yield.The diazoalkanes undergo intermolecular reaction, giving rise to azines (5), or they can be trapped in situ with 1,3-dipolarophiles to afford cycloadducts (7 or 11), which can in turn be photolyzed to the corresponding cyclopropenes (8) and cyclopropanes (12), respectively.
