Total Synthesis of the Chlorine-Containing Hapalindoles K, A, and G
作者:Aroop Chandra、Jeffrey N. Johnston
DOI:10.1002/anie.201100957
日期:2011.8.8
Overall brevity in the synthesis of the title compounds (see scheme) is achieved by a sequential electrophilic aromatic substitution of indole and a regio‐ and diastereoselective intermolecular Diels–Alder cycloaddition to establish the key precursor—a neopentyl chloride. A stereoselective Ritter reaction and dehydration are used for the installation of the isonitrile unit.
Synthesis of the ABC- and D-Ring Systems of the Indole Alkaloid Ambiguine G
作者:Aroop Chandra、Rajesh Viswanathan、Jeffrey N. Johnston
DOI:10.1021/ol702247a
日期:2007.11.1
A glycine Schiff base Michael addition is used in sequence with free radical-mediated aryl amination to ultimately arrive at the ambiguine G ABC-tricycle convergently. Additionally, thermal Diels-Alder cycloaddition of beta-chloromethacrolein with Cohen's diene is used to diastereoselectively construct the D-cyclohexane ring bearing a neopentyl chloride.
Synthesis of costatolide, a halogenated monoterpenoid from the red alga Plocamium costatum
作者:Paul G. Williard、Lawrence A. Grab、Stephen E. De Laszlo
DOI:10.1021/jo00155a046
日期:1983.4
SCHULZE K.; RENTSCH M.; HAUFE G.; WELSCH T., SYNTHESIS (BRD), 1981, NO 6, 483-484