All Faculty and Research Staff Publications

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2005
Ghosh SK, Hsung RP, Liu J. An anomeric control on remote stereochemistry in the synthesis of spiroketals. Journal of the American Chemical Society. 2005 ;127:8260-8261.
Zhang YS, Hsung RP, Zhang XJ, Huang J, Slafer BW, Davis A. Bronsted acid-catalyzed highly stereoselective arene-ynamide cyclizations. A novel keteniminium Pictet-Spengler cyclization syntheses of (+/-)-desbromoarborescidines A and C. Organic Letters. 2005 ;7:1047-1050.
Huang J, Hsung RP. Chiral Lewis acid-catalyzed highly enantioselective 4+3 cycloaddition reactions of nitrogen-stabilized oxyallyl cations derived from allenamides. Journal of the American Chemical Society. 2005 ;127:50-51.
Shen LC, Hsung RP, Zhang YS, Antoline JE, Zhang XJ. Copper-catalyzed stereospecific N-allenylations of amides. Syntheses of optically enriched chiral allenamides. Organic Letters. 2005 ;7:3081-3084.
Gerasyuto AI, Hsung RP, Sydorenko N, Slafer B. A formal 3+3 cycloaddition reaction. 5. An enantioselective intramolecular formal aza- 3+3 cycloaddition reaction promoted by chiral amine salts. Journal of Organic Chemistry. 2005 ;70:4248-4256.
Shen LC, Hsung RP. Highly regioselective radical cyclizations of allenamides. Organic Letters. 2005 ;7:775-778.
Liu J, Swidorski JJ, Peters SD, Hsung RP. An N-acyliminium cyclization approach to a total synthesis of (+)-cylindricine C. Journal of Organic Chemistry. 2005 ;70:3898-3902.
Berry CR, Hsung RP, Antoline JE, Petersen ME, Challeppan R, Nielson JA. Syntheses of 2,5-disubstituted dihydrofurans from gamma-substituted chiral allenamides. Journal of Organic Chemistry. 2005 ;70:4038-4042.
Liu J, Hsung RP. Synthesis of the C11-C23 fragment of spirastrellolide A. A ketal-tethered RCM approach to the construction of spiroketals. Organic Letters. 2005 ;7:2273-2276.
Sydorenko N, Zificsak CA, Gerasyuto AI, Hsung RP. Total syntheses of enantiomerically enriched R-(+)- and S-(-)-deplancheine. Organic & Biomolecular Chemistry. 2005 ;3:2140-2144.
Cole KP, Hsung RP. Unique structural topology and reactivities of the ABD tricycle in phomactin A. Chemical Communications. 2005 :5784-5786.
2004
Tracey MR, Grebe TP, Brennessel WW, Hsung RP. (4R)-3-Allenyl-4-(diphenylmethyl)oxazolidin-2-one, an unsubstituted allenamide. Acta Crystallographica Section C-Crystal Structure Communications. 2004 ;60:O830-O832.
Tracey MR, Hsung RP, Lambeth RH. Allylated beta-ketoesters as precursors in Paal-Knorr-type pyrrole synthesis: Preparations of chiral and bispyrroles. Synthesis-Stuttgart. 2004 :918-922.
Zhang YS, Hsung RP, Tracey MR, Kurtz KCM, Vera EL. Copper sulfate-pentahydrate-1,10-phenanthroline catalyzed amidations of alkynyl bromides. Synthesis of heteroaromatic amine substituted ynamides. Organic Letters. 2004 ;6:1151-1154.
Hsung RP, Kurdyumov AV, Sydorenko N. A formal 3+3 cycloaddition approach to natural-product synthesis. European Journal of Organic Chemistry. 2004 :23-44.
Berry CR, Hsung RP. Inverse electron-demand aza- 4+2 cycloaddition reactions of allenamides. Tetrahedron. 2004 ;60:7629-7636.
Ghosh SK, Hsung RP, Wang JS. Ketal-tethered ring-closing metathesis. An unconventional approach to constructing spiroketals and total synthesis of an insect pheromone. Tetrahedron Letters. 2004 ;45:5505-5510.
Tracey MR, Zhang YS, Frederick MO, Mulder JA, Hsung RP. Sonogashira cross-couplings of ynamides. Syntheses of urethane- and sulfonamide-terminated conjugated phenylacetylenic systems. Organic Letters. 2004 ;6:2209-2212.
Wang JS, Hsung RP, Ghosh SK. Stereoselective ketal-tethered intramolecular Diels-Alder cycloadditions. An approach to the 2-oxadecalin spiroketal core of antifungal agent fusidilactione C. Organic Letters. 2004 ;6:1939-1942.
Rameshkumar C, Hsung RP. A tandem epoxidation/stereoselective intramolecular 4+3 cycloaddition reaction involving nitrogen-stabilized oxyallyl cations derived from chiral allenamides. Angewandte Chemie-International Edition. 2004 ;43:615-618.
Sydorenko N, Hsung RP, Darwish OS, Hahn JM, Liu J. Tetronamides as latent acyclic vinylogous amides in formal aza- 3+3 cycloaddition reactions with alpha,beta-unsaturated iminium salts. An unexpected rearrangement and an approach to synthesis of substituted piperidines. Journal of Organic Chemistry. 2004 ;69:6732-6738.
Liu J, Hsung RP, Peters SD. Total syntheses of (+)-cylindricines C-E and (-)-lepadiformine through common intermediate derived from aza-prins cyclization and Wharton's rearrangement. Organic Letters. 2004 ;6:3989-3992.
2003
Frederick MO, Mulder JA, Tracey MR, Hsung RP, Huang J, Kurtz KCM, Shen LC, Douglas CJ. A copper-catalyzed C-N bond formation involving sp-hybridized carbons. A direct entry to chiral ynamides via N-alkynylation of amides. Journal of the American Chemical Society. 2003 ;125:2368-2369.
Wei LL, Xiong H, Hsung RP. The emergence of allenamides in organic synthesis. Accounts of Chemical Research. 2003 ;36:773-782.
Kurdyumov AV, Hsung RP, Ihlen K, Wang JS. Formal 3+3 cycloaddition approach to chromenes and chromanes. Concise total syntheses of (+/-)-rhododaurichromanic acids A and B and methyl (+/-)-daurichromenic ester. Organic Letters. 2003 ;5:3935-3938.
Shen HC, Wang JS, Cole KP, McLaughlin MJ, Morgan CD, Douglas CJ, Hsung RP, Coverdale HA, Gerasyuto AI, Hahn JM, et al. A formal 3+3 cycloaddition reaction. Improved reactivity using alpha,beta-unsaturated iminium salts and evidence for reversibility of 6 pi-electron electrocyclic ring closure of 1-oxatrienes. Journal of Organic Chemistry. 2003 ;68:1729-1735.
Frederick MO, Hsung RP, Lambeth RH, Mulder JA, Tracey MR. Highly stereoselective Saucy-Marbet rearrangement using chiral ynamides. Synthesis of highly substituted chiral homoallenyl alcohols. Organic Letters. 2003 ;5:2663-2666.
Mulder JA, Kurtz KCM, Hsung RP, Coverdale H, Frederick MO, Shen LC, Zificsak CA. Highly stereoselective synthesis of novel alpha-haloenamides via a mild and efficient hydrohalogenation of ynamides. Organic Letters. 2003 ;5:1547-1550.
Mulder JA, Kurtz KCM, Hsung RP. In search of an atom-economical synthesis of chiral ynamides. Synlett. 2003 :1379-1390.
Luo SJ, Zificsak CA, Hsung RP. Intramolecular formal aza- 3+3 cycloaddition approach to indoloquinolizidine alkaloids. A stereoselective total synthesis of (+/-)-tangutorine. Organic Letters. 2003 ;5:4709-4712.
Cole KP, Hsung RP. Intramolecular formal oxa- 3+3 cycloaddition approach to the ABD system of phomactin A. Organic Letters. 2003 ;5:4843-4846.
Berry CR, Rameshkumar C, Tracey MR, Wei LL, Hsung RP. A Lewis acid mediated stereoselective removal of an anomeric urea substituent. Synlett. 2003 :791-796.
Shen LC, Hsung RP. Pauson-Khand cycloaddition reactions of chiral ynamides. Observation of an unusual endo-addition with norbornadiene. Tetrahedron Letters. 2003 ;44:9353-9358.
Rameshkumar C, Hsung RP. Pyranyl heterocycles from inverse electron demand hetero 4+2 cycloaddition reactions of chiral allenamides as a new chiral template for constructing C-glycoside substrates. Synlett. 2003 :1241-1246.
Xiong H, Huang J, Ghosh SK, Hsung RP. Stereoselective intramolecular 4+3 cycloadditions of nitrogen-stabilized chiral oxyallyl cations via epoxidation of N-tethered allenamides. Journal of the American Chemical Society. 2003 ;125:12694-12695.
Hsung RP, Cole KP, Zehnder LR, Wang JS, Wei LL, Yang XF, Coverdale HA. The total synthesis of (+/-)-arisugacin A. Tetrahedron. 2003 ;59:311-324.
2002
Xiong H, Hsung RP, Shen LC, Hahn JM. Chiral enamide. Part 1: Epoxidations of chiral enamides. A viable approach to chiral nitrogen stabilized oxyallyl cations in 4+3 cycloadditions. Tetrahedron Letters. 2002 ;43:4449-4453.
Cole KP, Hsung RP. The first enantioselective total synthesis of (-)-arisugacin A. Tetrahedron Letters. 2002 ;43:8791-8793.
Mulder JA, Hsung RP, Frederick MO, Tracey MR, Zificsak CA. The first stereoselective Ficini-Claisen rearrangement using chiral ynamides. Organic Letters. 2002 ;4:1383-1386.
Huang J, Xiong H, Hsung RP, Rameshkumar C, Mulder JA, Grebe TP. The first successful base-promoted isomerization of propargyl amides to chiral ynamides. Applications in ring-closing metathesis of ene-ynamides and tandem RCM of diene-ynamides. Organic Letters. 2002 ;4:2417-2420.
Rameshkumar C, Xiong H, Tracey MR, Berry CR, Yao LJ, Hsung RP. NMR studies on epoxidations of allenamides. Evidence for formation of nitrogen-substituted allene oxide and spiro-epoxide via trapping experiments. Journal of Organic Chemistry. 2002 ;67:1339-1345.
McLaughlin MJ, Hsung RP, Cole KP, Hahn JM, Wang JS. A novel and highly stereoselective approach to aza-spirocycles. A short total synthesis of 2-epi-(+/-)-perhydrohistrionicotoxin and an unprecedented decarboxylation of 2-pyrones. Organic Letters. 2002 ;4:2017-2020.
Sklenicka HM, Hsung RP, McLaughlin MJ, Wei LI, Gerasyuto AI, Brennessel WB. Stereoselective formal 3+3 cycloaddition approach to cis-1-azadecalins and synthesis of ((-))-4a,8a-diepi-pumiliotoxin C. Evidence for the first highly stereoselective 6 pi-electron electrocyclic ring closures of 1-azatrienes. Journal of the American Chemical Society. 2002 ;124:10435-10442.
Cole KP, Hsung RP, Yang XF. The total synthesis of (+/-)-arisugacin A. Tetrahedron Letters. 2002 ;43:3341-3345.
Wang J, Cole KP, Wei LL, Zehnder LR, Hsung RP. An unexpected retro-aldol-aldol in the AB-ring in the synthesis of (+/-)-arisugacin A. Tetrahedron Letters. 2002 ;43:3337-3340.

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