title: First synthesis of dimethyl-1H-isochromeno[3,4-b]carbazoles.
abstract: The first synthesis of isochromene fused carbazols, (4aS, 13bR)-2,5,5-trimethyl-3,4,4a,5,8,13b-hexahydroisochromeno[3,4-b]carbazole (2) and its epi-isomer 3 by condensation of citral and 2-hydroxycarbazole using Ti(OEt)4 and MeAlC12 as catalysts is described.
authors.affiliation: Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Rd., Caugiay, Hanoi, Vietnam. nmcuong@ich.vast.ac.vn
authors.forename: Nguyen Manh
authors.initials: NM
authors.lastname: Cuong
authors.forename: Heike
authors.initials: H
authors.lastname: Wilhelm
authors.forename: Andrea
authors.initials: A
authors.lastname: Porzel
authors.forename: Ludger
authors.initials: L
authors.lastname: Wessjohann
mesh_terms: D001578:Benzopyrans / Q000138:chemical synthesis*; D002227:Carbazoles / Q000138:chemical synthesis*; D002384:Catalysis; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: D001578:Benzopyrans; D002227:Carbazoles; D007202:Indicators and Reagents