Zobrazeno 1 - 10 of 14 pro vyhledávání: '"William de Waal"'
1
Total synthesis of (±)-aristolone
Autor: Edward Piers, William De Waal, Ronald W. Britton
Publikováno v: Canadian Journal of Chemistry. 47:831-840
A novel and efficient total synthesis of the racemic form of the sesquiterpene (−)-aristolone (1) is presented. The key step involves the cupric sulfate catalyzed intramolecular cyclization of the diazoketone 27, which produces a mixture of product
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c609b59aa3edc13dd572b4f4226a22d8
https://doi.org/10.1139/v69-132
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2
Annelation of 2,3-dimethylcyclohexanone. Synthetic proof for the stereochemistry of the sesquiterpene aristolone
Autor: Edward Piers, William De Waal, Ronald W. Britton
Publikováno v: Canadian Journal of Chemistry. 47:4307-4312
An efficient annelation of 2,3-dimethylcyclohexanone is described. The key step of this process involves the reaction of the enol lactone 16 with methyllithium, under carefully controlled conditions. The completely stereoselective conversion of the s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b811c7579f902b092115cb7ac8fa6598
https://doi.org/10.1139/v69-714
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3
Total Synthesis of ( ± )-α-Cubebene and ( ± )-β-Cubebene
Autor: Edward Piers, Ronald W. Britton, William De Waal
Publikováno v: Canadian Journal of Chemistry. 49:12-19
An efficient total synthesis of the racemic forms of the novel tricyclic sesquiterpenes α-cubebene (1) and β-cubebene (2) is described. The key step of this synthesis involved the cupric sulfate catalyzed intramolecular cyclization of the olefinic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::752d227a7ec4e1f724193a4721123b49
https://doi.org/10.1139/v71-003
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4
Total synthesis, stereochemistry, and lithium–ammonia reduction of (±)-4-demethylaristolone and (±)-5-epi-4-demethylaristolone
Autor: Edward Piers, William De Waal, Ronald W. Britton
Publikováno v: Canadian Journal of Chemistry. 47:4299-4306
The total synthesis of (±)-4-demethylaristolone (14) and its epimer, (±)-5-epi-4-demethylaristolone (15) is described. The key step of this synthesis involves the intramolecular cyclization of the olefinic diazoketone 12, which produces the two epi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::802342e51f62cf0b7a862b4904fcfa16
https://doi.org/10.1139/v69-713
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6
Corrigenda
Autor: H. Irie, H. Kimura, N. Otani, K. Ueda, S. Uyeo, P. C. Petrellis, G. W. Griffin, L. H. Keith, S. W. Pelletier, C. J. L. Lock, Che'ng Wan, David I. Schuster, Donald F. Brizzolara, L. A. Summers, J. E. Dickeson, J. W. ApSimon, R. R. King, Jasjit S. Walia, Parveen S. Walia, Linda Heindl, H. Lader, Ronald J. Parry, R. M. Dodson, P. D. Hammen, R. A. Davis, A. G. Anastassiou, G. B. Howarth, W. A. Szaerk, J. K. N. Jones, M. N. Galbraith, D. H. S. Horn, E. J. Middleton, R. J. Hackney, H. Ishii, T. Tozyo, H. Minato, V. Albano, P. Chini, V. Scatturin, H. E. Zimmerman, Edward Piers, William de Waal, Ronald W. Britton, Z. Neiman, C. Burridge, D. P. G. Hamon, J. Bascoul, A. Crastes de Paulet, R. R. Hill, G. H. Mitchell, K. Kato, Y. Hirata, S. Yamamura, M. Avaro, J. Levisalles, J. M. Sommer, I. T. Barnish, C. L. Mao, R. L. Gay, C. R. Hauser, Nye A. Clinton, C. Peter Lillya, G. Fodor, J. D. Medina, Nagabhushnam Mandava, P. J. Cahill, V. C. Nelson, N. Katsaros, J. W. George, A. Misono, Y. Uchida, M. Hidai, I. Inomata, S. Hanessian, N. R. Plessas, P. J. Garratt, R. H. Mitchell, S. O'Brien, J. S. Read, F. L. Warren, P. H. Hewitt, R. A. Abramovitch, V. Uma, Wesley G. Bentrude, K. R. Darnall, H. S. Preston, C. H. L. Kennard, N. W. Isaacs, W. Kitching, M. Ehemann, H. Nöth, N. Davies, M. G. H. Wallbridge, R. Mason, G. B. Robertson, P. O. Whimp, B. L. Shaw, G. Shaw, L. Crombie, R. Ponsford, R. Teranishi, A. F. Thomas, P. Schudel, G. Büchi, A. E. Opara, G. Read, P. R. Hammond, R. R. Lake, L. R. Subbaraman, Jiji Subbaraman, E. J. Behrman, Dominic Young, Sheldon E. Cremer, Shih Yi Wang, John C. Nnadi, S. Bresadola, P. Rigo, A. Turco, John A. Walker, Milton Orchin, H. J. Jakobsen, A. Senning, John F. Corbett, B. E. Davidson, R. D. Guthrie, A. T. McPhail, I. M. Downie, J. B. Lee, M. F. S. Matough, E. O. Fischer, V. Kiener, D. St. P. Bunbury, E. Frank, P. F. Lindley, O. S. Mills
Publikováno v: Chem. Commun. (London). :1739-1748
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::790c9f93be6a34449172e1cbc8fdde0c
https://doi.org/10.1039/c19680001739
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10
ChemInform Abstract: TOTALSYNTH. VON (+-)-ALPHA-CUBEBEN UND (+-)-BETA-CUBEBEN
Autor: Edward Piers, Ronald W. Britton, William De Waal
Publikováno v: Chemischer Informationsdienst. Organische Chemie. 2
Kondensation des handelsublichen Gemisches (Ia) aus (±)-Menthon und (±)-Isomenthon mit Athyl-formiat in Gegenwart von Na-methoxid in Benzol gibt das Hydroxymethylen-Derivat (Ib) (88% Ausbeute), das durch Behandlungmit n-Butanthiol unter gewohnliche
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3d17754c3712dda9321334da87d62d6
https://doi.org/10.1002/chin.197119328
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