24449-39-6Relevant articles and documents
Synthesis of hemitectol, tectol, and tecomaquinone i
Cadelis, Melissa M.,Barker, David,Copp, Brent R.
, p. 2939 - 2942 (2013/03/13)
The first total syntheses of Tectona grandis (teak) natural products hemitectol and tectol are described. The observation of spontaneous dimerisation of hemitectol to tectol suggests the monomer is the true natural product and that the dimer is an artifact of isolation. Georg Thieme Verlag KG · Stuttgart · New York.
Radermachol and naphthoquinone derivatives from Tecomella undulata: Complete 1H and 13C NMR assignments of radermachol with the aid of computational 13C shift prediction
Singh, Pahup,Khandelwal, Poonam,Hara, Noriyuki,Asai, Teigo,Fujimoto, Yoshinori
experimental part, p. 1865 - 1870 (2009/05/27)
Petroleum ether extract of the heartwood of Tecomella undulata affords radermachol, an unusual rare pigment and 2-isopropenylnaphtho[2,3-b]furan-4,9- quinone along with lapachol, tecomaquinone-I, dehydro-α-lapachone, α-lapachone, β-lapachone, cluytyl ferulate, stigmasterol and β-sitosterol. Radermachol and 2-isopropenylnaphtho [2,3-b]furan-4,9-quinone are being reported for the first time from genus Tecomella. Complete assignments of 1H and 13C NMR signals of polyketide, radermachol 1, have been achieved by the 13C NMR chemical shift prediction using ab initio MO and DFT/GIAO methods in addition to 2D-NMR techniques.
