Ionic liquid as an effective green media for the synthesis of (5Z, 8Z)-7H-pyrido[2,3-d]azepine derivatives and recycable Fe3O4/TiO2/multi-wall cabon nanotubes magnetic nanocomposites as high performance organometallic nanocatalyst.
Sign Up to like & getrecommendations! Published in 2021 at "Molecular diversity"
DOI: 10.1007/s11030-021-10269-5
Abstract: In this research we investigated the preparation of new (5Z, 8Z)-7H-pyrido[2,3-d]azepine derivatives in high yields via multicomponent reaction of isatins, alkyl bromides, activated acetylenic compounds and ammonium acetate using ionic liquid 1-octhyl-3-methyl imidazolium bromide ([OMIM]Br)… read more here.
Keywords: ionic liquid; pyrido azepine; liquid; azepine derivatives ... See more keywords
Asymmetric Hydrogenation of Dibenzo[ c,e]azepine Derivatives with Chiral Cationic Ruthenium Diamine Catalysts.
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DOI: 10.1021/acs.orglett.9b01859
Abstract: An efficient Ru-catalyzed asymmetric hydrogenation of dibenzo[ c, e]azepines is reported. A series of seven-membered cyclic amines were obtained with moderate to excellent enantioselectivity. The catalyst counteranion played an important role in achieving high-level chiral… read more here.
Keywords: azepine derivatives; dibenzo azepine; asymmetric hydrogenation; hydrogenation dibenzo ... See more keywords
Synthesis of Indolizine and Pyrrolo[1,2-a]azepine Derivatives via a Gold(I)-Catalyzed Three-Step Cascade.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b03402
Abstract: Linear N-alkenyl or alkynyl N-sulfonyl 1-aminobut-3-yn-2-ones are converted into bicyclic indolizines and pyrrolo[1,2-a]azepine-type alkaloids upon gold(I) catalysis (17 examples, 10-85%). The reaction cascade allowed formation of C-N, O-S, and C-C bonds via a cycloisomerization/sulfonyl migration/cyclization… read more here.
Keywords: pyrrolo azepine; azepine derivatives; azepine; gold ... See more keywords