948296-32-0Relevant academic research and scientific papers
Aluminium chloride-catalyzed claisen rearrangement: Synthesis of polyheterocycles containing oxygen, nitrogen, and sulfur
Majumdar,Islam,Alam
, p. 754 - 766 (2008/09/17)
Synthesis of 1,8-naphthyridine-annulated polyheterocycles containing oxygen, nitrogen, and sulfur has been achieved by thionation and sequential Claisen rearrangement of 4-(4'-aryloxybut-2'-ynyloxy)-1-phenyl[1,8]- naphthyridin-2-ones first by heating in 1,2-dichlorobenzene for 1-2 h and then by anhydrous AlCl3-catalyzed Claisen rearrangement in dichloromethane for 1 h. Copyright Taylor & Francis Group, LLC.
Regioselective synthesis of pentacyclic polyheterocycles: Sequential [3,3] sigmatropic rearrangement of 4-(4′-aryloxybut-2′-ynyloxy)-1-phenyl- 1,8-naphthyridin-2(1H)-ones
Majumdar, Krishna C.,Rafique-ul-Islam
, p. 871 - 875 (2008/03/29)
(Chemical Equation Presented) A number of 4-aryloxymethyl-6-phenyl-2H- pyrano[3,2-c][1,8]naphthyridin-5(6H)-ones (4a-f) are regioselectively synthesized in 72-78% yield by the Claisen rearrangement of 4-(4′- aryloxybut-2′-ynyloxy)-1-phenyl-1,8-naphthyridi
