77356-69-5Relevant academic research and scientific papers
The chemistry of 2,3-Dihydro-2,3-diiminofurans
Capuano, Lilly,Moersdorf, Peter
, p. 2178 - 2188 (2007/10/02)
The title compounds 6 undergo with nucleophiles condensation reactions in position 3, or ring opening and rearrangements to yield 2,3-furandiones 2, 2,3-pyrrolediones 3 as well as the 3-oxime, 3-imine and 3-hydrazone derivatives 5, 10, 11, 15 of these compounds, furthermore 3-butenamides 8, and 5- or 3-pyrazolecarboxamides 13, 14.With heterocumulenes 19, 21, and thioglycolic acid (18), mostly cycloadditions or 2,3-cyclocondensations, respectively, take place at the β-imino group only, leading to spiro 23, spiro-thiaziazines> 20, the spirothiazolidine> 17, and the spirothiazolidine> 26.By a cycloaddition involving both imino groups the furopyrazine 25 is formed.These ring systems have not yet been described.
Cycloreaktionen von α-Acylketenen mit Phosphinyldiazoalkanen und Isonitrilen
Capuano, Lilly,Tammer, Thomas
, p. 456 - 467 (2007/10/02)
Depending on the half life times of both reactands, thermolysis of 2-diazo-1,3-diketones 1 with phosphinyldiazoalkanes 3 leads via the acylketenes 2 to the formation of the hitherto unknown oxaphosphorinone 6, furanones 7, pyrazolones 9, 11, and vinyl ket
