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191. Snider, B. B.; Kiselgof, J. Y.; Foxman, B. M. “Total Syntheses of (±)-Isosteviol and (±)-Beyer-15-ene-3b,19-diol by Manganese(III)-Based Oxidative Quadruple Free-Radical Cyclization” J. Org. Chem. 1998, 63, 7945-7952. http://dx.doi.org/10.1021/jo981238x
190. Vela, M. J.; Snider, B. B.; Foxman, B. M. “Solid-State Polymerization of Aquabis(3-butenoato)calcium” Chem. Mater. 1998, 10, 3167-3171. http://dx.doi.org/10.1021/cm980231t
189. Snider, B. B. “Manganese(III)-Based Oxidative Free-Radical Cyclizations” in Transition Metals for Organic Synthesis. M. Beller, C. Bolm, Eds: Wiley-VCH; Weinheim, 1998, volume 1, pp 439-44.
188. Song, F.; Snook, J. H.; Foxman, B. M.; Snider, B. B. “Solid-State Photodimerization of 2-Phenylethenyl Enamides” Tetrahedron 1998, 54, 13035-13044. http://dx.doi.org/10.1016/S0040-4020(98)00806-0
187. Snider, B. B.; Xie, C. “Model Studies for the Synthesis of the Marine Hepatotoxin Cylindrospermopsin. Preparation of a Bicyclic Guanidine with the Hydroxymethyluracil Side Chain” Tetrahedron Lett. 1998, 39, 7021-7024. http://dx.doi.org/10.1016/S0040-4039(98)01470-1
186. Snider, B. B.; Lin, H.; Foxman, B. M. “Synthesis of Desmethylamino FR901483” J. Org. Chem. 1998, 63, 6442-6443. http://dx.doi.org/10.1021/jo981292d
185. Snider, B. B.; Kiselgof, J. Y. “Mn(III)-Based Oxidative Free-Radical 6-endo Cyclizations of Z-Trisubstituted Alkenes” Tetrahedron 1998, 54, 10641-10648. http://dx.doi.org/10.1016/S0040-4020(98)00612-7
184. Snider, B. B.; Chen, J. “Synthesis of Batzelladine E and its E Isomer” Tetrahedron Lett. 1998, 39, 5697-5700. http://dx.doi.org/10.1016/S0040-4039(98)01196-4
183. He, F.; Foxman, B. M.; Snider, B. B. “Total Syntheses of (-)-Asperlicin and (-)-Asperlicin C” J. Am. Chem. Soc. 1998, 120, 6417-6418. http://dx.doi.org/10.1021/ja9809408
182. Snider, B. B.; Vo, N. H.; O’Neil, S. V. “Synthesis of (±)-Allocyathin B2 and (+)-Erinacine A” J. Org. Chem. 1998, 63, 4732-4740. http://dx.doi.org/10.1021/jo9804700
181. Snider, B. B.; Lin, H. “An Improved Procedure for the Conversion of Alkenes and Glycals to 1,2-Diazides Using Mn(OAc)3•2H2O in Acetonitrile Containing Trifluoroacetic Acid” Synth. Commun. 1998, 28, 1913-1922. http://dx.doi.org/10.1080/00397919808007024
Alkenes and Glycals react with Mn(OAc3)·2H2O and NaN3 in 9:1 acetonitrile-trifluoroacetic acid to give 1,2-diazides in >80% yield. Allylic azides are formed by slow addition of NaN3 to a mixture of alkene, Mn(OAc)3·2H2O and Cu(OAc)2.
180. Yang, T.; Snider, B. B.; Oprian, D. D. “Synthesis and Characterization of a Novel Retinylamine Analog Inhibitor of Constitutively Active Rhodopsin Mutants Found in Patients with Autosomal Dominant Retinitis Pigmentosa” Proc. Natl. Acad. Sci. U. S. A. 1997, 94, 13559-13564. http://www.pnas.org/content/94/25/13559.full.pdf
179. Snider, B. B.; Han, L.; Xie, C. “Synthesis of 2,3-Dihydrobenzofurans by Mn(OAc)3-Based Oxidative Cycloaddition of 2-Cyclohexenones with Alkenes. Synthesis of (±)-Conocarpan” J. Org. Chem. 1997, 62, 6978-6984. http://dx.doi.org/10.1021/jo9708506
178. Snider, B. B.; Liu, T. “Synthesis of (±)-Cylindricines A, D, and E” J. Org. Chem. 1997, 62, 5630-5633. http://dx.doi.org/10.1021/jo970536b
177. O’Neil, S. V.; Quickley, C. A.; Snider, B. B. “Synthesis of (±)-Gymnomitrol. Mn(OAc)3-Initiated Free-Radical Cyclization of Alkynyl Ketones” J. Org. Chem. 1997, 62, 1970-1975. http://dx.doi.org/10.1021/jo9622338
176. Snider, B. B.; Lu, Q. “Syntheses of (±)-Raikovenal, (±)-Preraikovenal, and (±)-Epiraikovenal” Synth. Commun. 1997, 27, 1583-1600. http://dx.doi.org/10.1080/00397919708006097
(±)-Raikovenal has been synthesized in five steps from dihydrofilifolone by two Wittig reactions. A similar sequence provides (±)-preraikovenal. Epiraikovenal has been prepared by photolysis of preraikovenal.
175. Snider, B. B.; He, F. “Total Synthesis of (±)-Rhopaloic acid A” Tetrahedron Lett. 1997, 38, 5453-5454. http://dx.doi.org/10.1016/S0040-4039(97)01220-3
174. He, F.; Snider, B. B.”Total Synthesis of (+)-Fumiquinazoline G and (+)-Dehydrofumiquinazoline G” Synlett 1997, 483-484. http://dx.doi.org/10.1055/s-1997-6137
An efficient twelve step synthesis of (±)-fumiquinazoline G was achieved in 11% overall yield.
