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pro vyhledávání: '"Prasad A"'
Publikováno v:
Synthetic Communications. 49:3140-3147
A series of eight N1-(β-D-ribofuranosyl)-C4-(coumarin-4′′-yl)-1,2,3-triazoles have been synthesized by Cu(I)-catalyzed click reaction of 1-azido-1-deoxy-2,3,5-tri-O-benzoyl-β-D-ribofuranose with di...
Publikováno v:
Synthetic Communications. 47:990-998
A new class of dibenzo[b,j][1,10]phenanthrolines has been prepared. The synthon acridones were achieved in very good yield by a one-pot reaction of 2-amino-5-chloro or 2′-chloro/flouro-substituted benzophenones with 1,2-cyclohexanedione in the pres
Synthesis and Cation Recognition Study of Novel Benzo Crown Ether Functionalized Enamine Derivatives
Autor:
D. R. Patil, D. R. Chandam, Abhijeet Mulik, Suryabala Jagdale, Madhukar B. Deshmukh, Prasad Patil
Publikováno v:
Synthetic Communications. 45:1902-1911
A novel series of benzo crown ether (dibenzo 18-crown-6 ether, benzo 18-crown-6 ether, and benzo 15-crown-5 ether) functionalized enamines derivatives from amino benzo crown ether (4-amino dibenzo 18-crown-6 ether, 4-amino benzo 18-crown-6 ether, 4-a
Publikováno v:
Synthetic Communications. 43:520-536
trans-α-Alkoxy-β-halotetrahydropyridines are synthesized in a very efficient single step by stereocontrolled N-halosuccinimide (NXS)–promoted alcohol addition to the enamine group in N-alkyl-1,4-dihydropyridines. These compounds are cyclized usin
Autor:
M. Manoj, K. J. Rajendra Prasad
Publikováno v:
Synthetic Communications. 40:3290-3308
The reaction of 2,4-dichloroquinolines with o-aminoacetophenone and o-aminobenzophenone under neat conditions yielded 2′-acetyl and 2′-benzoyl substituted-4-chloro-2-(N-phenylamino)quinolines, respectively, which on treatment with sodium methoxid
Publikováno v:
Synthetic Communications. 38:85-91
Synthesis of new benzoxazaphosphinine/benzoxazaphosphole/diazaphosphaphenalene 2‐sulfides were accomplished by the reaction of Lawesson's reagent (LR) with 4‐bromo‐2‐[(phenylamino) methyl]phenol (1a), 4‐bromo‐2‐[(4‐chloro/bromo/methox
Publikováno v:
Synthetic Communications. 32:1211-1217
A combination of Et3N and pTSCl was found to be far superior than pTSCl or benzene sulfonyl chloride alone in converting substituted 2-picoline-N-oxides to the corresponding 2-chloromethylpyridines and has been exploited for the synthesis of a variet
Autor:
V. S. R. Prasad, K. Kondal Reddy
Publikováno v:
Synthetic Communications. 20:2617-2622
N-2-Pyrimidylarylamidines (2) obtained by the reaction of 2-aminopyrimidines (1) with aryl cyanides in the presence of anhydrous aluminium chloride have been converted into 2-aryl-1,2,4-triazolo[1,5-a] pyrimidines (4) by oxidative cyclisation in the
Publikováno v:
Synthetic Communications. 20:1983-1988
1-(2′-Thiazolo [5,4-b] pyridyl)-5-aryltetrazoles (4) have been obtained by the reaction of 2-aroylaminothiazolo [5,4-b] pyridines (2) with phosphorus pentachloride and azidolysis of the resulting imidoyl chlorides. The products of pyrolysis of 1-(2
Autor:
Ch. Prasad Rao, G. Srimannarayana
Publikováno v:
Synthetic Communications. 20:535-540
The Claisen rearrangement of 4-propargyloxycoumarins affords 2H, 5H-pyrano[3,2-c][1]benzopyrans-5-ones as the only product. The effect of solvent on the Claisen rearrangement has been examined.