94882-59-4Relevant academic research and scientific papers
Asymmetric intramolecular aza-Michael reaction using environmentally friendly organocatalysis
Takasu, Kiyosei,Maiti, Soumen,Ihara, Masataka
, p. 51 - 55 (2007/10/03)
This communication describes enantioselective intramolecular aza-Michael reaction to prepare 1,2,3,4-tetrahydroisoquinolines by using organocatalysts. The organocatalytic reaction offers new green chemical process in heterocyclic chemistry. Additional not
Synthesis of benzo[a]quinolizines by the intramolecular double michael reaction under three different conditions
Ihara, Masataka,Yamada, Masami,Ishida, Yohei,Tokunaga, Yuji,Fukumoto, Keiichiro
, p. 531 - 536 (2007/10/03)
Benzo[a]quinolizines (4A-C) and (5A-C) were synthesized by the intramolecular double Michael reaction of amide esters (3A-C), carried out using three reagent systems; TBDMSOTf-Et3N, TMSI-(TMS)2NH, and Bu2BOTf-(TMS)2/
STEREOCONTROLLED CONSTRUCTION OF OCTAHYDROQUINOLIZINES, OCTAHYDROINDOLIZINES, HEXAHYDROBENZOQUINOLIZINES, AND AN OCTAHYDROINDOLOQUINOLIZINE BY AN INTERMOLECULAR DOUBLE MICHAEL REACTION: SYNTHESIS OF (+/-)-EPILUPININE
Ihara, Masataka,Kirihara, Tomoko,Kawaguchi, Akihiro,Tsuruta, Mayumi,Keiichiro, Fukumoto,Kametani, Tetsuji
, p. 1719 - 1726 (2007/10/02)
Stereocontrolled one-step syntheses of octahydroquinolizine and octahydroindolizine derivatives from α,β-unsaturated enamide esters was achieved under two different conditions; heating in the presence of chlorotrimethylsilane, triethylamine, and zinc chlo
A NOVEL SYNTHESIS OF BENZO- AND INDOLOQUINOLIZIDINES BY INTRAMOLECULAR DIELS-ALDER REACTION OF 1-AZADIENES
Ihara, Masataka,Kirihara, Tomoko,Kawaguchi, Akihiro,Fukumoto, Keiichiro,Kametani, Tetsuji
, p. 4541 - 4544 (2007/10/02)
Intramolecular Diels-Alder reaction of 1-azadienes was conducted by heating the α,β-unsaturated amides ( 2a - d and 6 ) in the presence of trimethylchlorosilane, triethylamine and zinc chloride to give benzo- and indoloquinolizidines ( 5a - d and 7 ).
