Selective Protection of Carbonyl Compounds as Azines and Their Facile Regeneration

References

• Schweizer , E. E. , Cao , Z. , Rheingold , A. L. and Brunch , M. 1993 . Reactions of azines, 16: Preparation of 6‐(phenylmethylene)‐5H‐pyrazolo[1,5‐d][2,4] benzoxazepines, 5H, 7H‐pyrazolo[1,5‐d][2] benzazepin‐6‐one, and indeno [2,3‐c] pyridine‐3,9‐diones . J. Org. Chem. , 58 : 4339 – 4345 .
   Web of Science ®Google Scholar
• Singh , G. S. and Kopo , K. 2002 . Synthesis of 1,1,4,4‐tetraaryl‐1,3‐diazabutadiene by oxidation of hydrazones using bis(acetonylacetonato)‐copper (II) . Indian J. Chem , 41B : 1736 – 1737 .
   Google Scholar
• Shah , S. N. and Chudgar , N. K. 2000 . Thermolysis of semicarbazones to the corresponding azines through reactive N‐substituted isocyanate intermediates . Molecules , 5 : 657 – 664 .
   Web of Science ®Google Scholar
• Loghmani‐Khouzami , H. , Sadeghi , M. M. , Safari , J. , Abdorrezaie , M. S. and Jafapisheh , M. 2001 . A convenient synthesis of azines under solvent‐free conditions using microwave irradiation . J. Chem. Res, Synop. , : 80 – 81 .
   Web of Science ®Google Scholar
• Howard , L. B. , Hilbert , G. E. , Wiebe , W. R. and Gaddy , V. L. 1932 . The thermal decomposition of azines: A note on the thermal decomposition of benzaldazine under 1000 atmospheres pressure of nitrogen, hydrogen and ammonia . J. Am. Chem. Soc. , 54 : 3628 – 3641 .
   Google Scholar
• Elkan , R. B. and Ralph , M. G. 1945 . The absorption spectra of certain aldazines . J. Am. Chem. Soc. , 67 : 13 – 17 .
   Web of Science ®Google Scholar
• Elkan , R. B. , Virginia , W. E. and Ralph , M. G. 1946 . Absorption spectra, IV: Ketazines . J. Am. Chem. Soc. , 68 : 1983 – 1986 .
   Web of Science ®Google Scholar