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Mg2+-Imidazole-Catalyzed Self-Condensation of Malonyl Thioesters: Getting Tuned for Biomimetic Polyketide Synthesis?
Published 2001-10-01“…We report that a subtle balance of carbanion reactivity, leaving group activation, and pKa of the catalyst is required for efficient self-condensation of thiomalonates to thioacetoacetates in up to 71% yield under “biomimetic†conditions originally proposed by Kobuke and Yoshida (Tetrahedron Lett. 1978, 19, 367).…”
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Sterol synthesis. A simplified method for the synthesis of 32-oxygenated derivatives of 24,25-dihydrolanosterol.
Published 1981-07-01“…Borkenhagen. 1965. Tetrahedron Lett. 2499-2504).…”
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Sensing study of quinoxaline analogues with theoretical calculation, single-crystal X-ray structure and real application in commercial fruit juices
Published 2018-01-01“…Single-crystal X-ray structures of dimeric quinoxaline aldehyde (QA), quinoxaline dihydrazone (DHQ) and HQNM (Goswami S et al. 2013 Tetrahedron Lett. 54, 5075–5077. (doi:10.1016/j.tetlet.2013.07.051); Goswami S et al. 2014 RSC Adv. 4, 20 922–20 926. …”
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Dehydroleucodin: a guaiane-type sesquiterpene lactone
Published 2011-12-01“…The absolute structure determined by X-ray analysis agrees with that previously assigned to this compound by NMR studies [Bohlmann & Zdero (1972). Tetrahedron Lett. 13, 621–624] and also with that of leucodine, a closely related guaianolide [Martinez et al. (1988). …”
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(25R)-3β,16β-Diacetoxy-23-acetyl-22,26-epoxycholesta-5,22-diene n-hexane 0.8-solvate
Published 2016-04-01“…In the title solvate, C33H48O6·0.8C6H14, the steroid presents a conformation almost identical to that of its previously characterized benzene monosolvate [Sandoval-Ramírez et al. (1999). Tetrahedron Lett. 40, 5143–5146]. The n-hexane solvent of crystallization is agglomerated in channels parallel to [100] in the crystal. …”
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