12 results on '"Efremov, Yu."'
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2. Derivatives of 4-carboxy-3,5-diphenyl-2-phenyliminothiazoline. Synthesis and mass spectral investigation
3. Synthesis and mass spectral study of N,N′-bis(2-R-5-phenyl)thiazolylureas
4. Cyclodehydration of 3-[α-(2′-aminophenylamino)-benzylidene]-2-oxo-1,4-dihydroquinoxaline into 2,2′-bisbenzimidazole with elimination of the benzylidene fragment
5. Investigation of the behavior of substituted benzimidazoles under the influence of electron impact
6. Mass spectrometric study of L-arabitol and ribitol diphosphites
7. Mass spectra of a number of 1,3,2-oxazaphosphorinanes
8. Cyclization of n-alkylazinium cations with bisnucleophiles. 4. Regio- and stereospecificity of the reactions of β-diketones with quinoxalinium salts and their aza and benzo analogs
9. Mass spectra of some six-membered cyclic phosphites
10. The mass spectra of some 1,3,2-oxazaphospholanes
11. Mass spectrometry of some five-membered cyclic phosphites
12. Cyclization of n-alkylazinium cations with bisnucleophiles. 4. Regio- and stereospecificity of the reactions of ?-diketones with quinoxalinium salts and their aza and benzo analogs
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