1334446-19-3Relevant academic research and scientific papers
Synthesis of New dihydropyrimidinones catalysed by dicationic ionic Liquid
Jawale, Dhanaji V.,Pratap, Umesh R.,Mulay, Aparna A.,Mali, Jyotirling R.,Mane, Ramrao A.
, p. 645 - 655 (2011)
A convenient multi step synthetic protocol for new dihydropyrimidinones bearing quinolynyl methoxy phenyl moiety has been developed from 2-chloro-3-formyl quinolines. The last step is one-pot Biginelli reaction of multicomponents, 4-((2-chloroquinolin-3-yl) methoxy) benzaldehydes, ethyl acetoacetate and urea mediated and catalysed by dicationic ionic liquid (3-methyl-1-[3-(methyl-1H-imidazolium-1-yl) propyl]- 1H-imidazolium dibromide (C3 [min]2 2 [Br-] )). Simple work-up procedures and moderate to good yields of the pyrimidinones and the intermediates are the merits of the route. Indian Academy of Sciences.
A novel and enantioselective total synthesis of (20 S)-camptothecin via a Sharpless asymmetric dihydroxylation strategy
Zhao, Lei,Xiong, Fang-Jun,Chen, Wen-Xue,Chen, Fen-Er
, p. 4045 - 4049 (2011)
A novel and efficient asymmetric total synthesis of (20S)-camptothecin has been accomplished in an overall yield of 12% starting from the commercially available 2-methoxynicotinic acid. The key step in the sequence is the Sharpless asymmetric dihydroxylation of a 4-(but-1-en-2-yl)pyridine derivative to establish the stereocenter of (20S)-camptothecin. Georg Thieme Verlag Stuttgart · New York.
Synthetic Route for New (Z)-5-[4-(2-Chloroquinolin-3-yl) Methoxy]benzylidinethiazolidine-2,4-diones
Jawale, Dhanaji V.,Pratap, Umesh R.,Mane, Ramrao A.
, p. 2171 - 2177 (2012/06/01)
Synthetic route has been developed for the synthesis of new (Z)-5-[4-(2-chloroquinolin-3-yl) methoxy]benzylidinethiazolidine-2,4-diones (6a-h) starting from 2-chloro-3-hydroxymethyl quinolines (2a-h). The hydroxy methyl quinolines on tosylation yielded (3a-h). Condensation of the tosyl intermediates with 4-hydroxy benzaldehydes has been carried in DMF in presence of K2CO3 and obtained 4-quinolinyl methoxy benzaldehydes (4a-h). Conveniently Knoevenagel condensation of quinolinyl methoxy benzaldehydes (4a-h) and 2, 4-thiazolidinedione (5) has been carried in PEG-400 in presence of L-proline and obtained better yields of the titled compounds (6a-h).
