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23044478807
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A new method for the generation of azoalkenes from ketohydrazones and its application to the synthesis of tetrahydropyridazine derivatives
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Gaonkar, S. L.; Rai, K. M. L. A new method for the generation of azoalkenes from ketohydrazones and its application to the synthesis of tetrahydropyridazine derivatives. Tetrahedron Lett. 2005, 46, 5969-5970.
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Gaonkar, S.L.1
Rai, K.M.L.2
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0026751671
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1,2,4-Triazolium salts from the reaction of 1-aza-2-azoniaallene salts with nitriles
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Wang, Q. R.; Jochims, J. C.; Kohlbrandt, S.; Dahlenburg, L.; Altalib, M.; Hamed, A.; Ismail, A. E. H. 1,2,4-Triazolium salts from the reaction of 1-aza-2-azoniaallene salts with nitriles. Synthesis 1992, 710-718.
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Wang, Q.R.1
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Ismail, A.E.H.7
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Wang, Q. R.; Liu, X. J.; Li, F.; Ding, Z. B.; Tao, F. G. A facile synthesis of the neutral [1,2,4]triazolo-[3,2-D][1,5]benzoxazepines and their chalcogen-analogues. Synth. Commun. 2002, 32, 1327-1335.
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1-Aza-2-azoniaallene salts: Reactions with azomethines and other N-nucleophiles
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Al-Soud, Y. A.; Shrestha-Dawadi, P. B.; Winkler, M.; Wirschun, W.; Jochims, J. C. 1-Aza-2-azoniaallene salts: reactions with azomethines and other N-nucleophiles. J. Chem. Soc., Perkin Trans. 1998, 1, 3759-3766.
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3 + 2]-Cycloadditions of 1-aza-2-azoniaallene cations to multiple bonds
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The chlorination of aldehyde and ketone phenylhydrazones
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23044478807
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Gaonkar and Rai proposed that aryl-α-chloroazoalkanes were formed by reacting arylhydrazones with chloramine-T in refluxing ethanol. However, these products were not isolated, and no characterization data were provided for these compounds. Gaonkar, S. L, Rai, K. M. L. A new method for the generation of azoalkenes from ketohydrazones and its application to the synthesis of tetrahydropyridazine derivatives. Tetrahedron Lett. 2005, 46, 5969-5970
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Gaonkar and Rai proposed that aryl-α-chloroazoalkanes were formed by reacting arylhydrazones with chloramine-T in refluxing ethanol. However, these products were not isolated, and no characterization data were provided for these compounds. Gaonkar, S. L.; Rai, K. M. L. A new method for the generation of azoalkenes from ketohydrazones and its application to the synthesis of tetrahydropyridazine derivatives. Tetrahedron Lett. 2005, 46, 5969-5970.
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Conversion of hydrazones to alkyl chlorides under swern oxidation conditions
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Brewer, M. Conversion of hydrazones to alkyl chlorides under swern oxidation conditions. Tetrahedron Lett. 2006, 47, 7731-7733.
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Benzylic arylhydrazones are converted into the corresponding aryl-α-chloroazoalkanes by the procedures developed by Moon; see Ref. 8 and 9 and also Liu, X.; Liu, Y.; Wang, Q.; Zou, J. An efficient approach to the [1,2,4]-triazolo[ 3,2-d] [1,5]benzoxazepine skeleton - A novel tricyclic ring system. Synth. Commun. 2000, 30, 119-130. The conversion of allylic arylhydrazones to allylic aryl-α-chloroazoalkenes has not been reported.
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Benzylic arylhydrazones are converted into the corresponding aryl-α-chloroazoalkanes by the procedures developed by Moon; see Ref. 8 and 9 and also Liu, X.; Liu, Y.; Wang, Q.; Zou, J. An efficient approach to the [1,2,4]-triazolo[ 3,2-d] [1,5]benzoxazepine skeleton - A novel tricyclic ring system. Synth. Commun. 2000, 30, 119-130. The conversion of allylic arylhydrazones to allylic aryl-α-chloroazoalkenes has not been reported.
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Pyrrolidinamine, peperidinamine and tetrahydropyridazine derivatives from selenium promoted cyclization of alkenyl phenylhydrazones
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