Zobrazeno 1 - 10
of 86
pro vyhledávání: '"J. Hodge Markgraf"'
Publikováno v:
Journal of Heterocyclic Chemistry. 46:1318-1323
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c7f403866a0b025b39aa5c20aeffab5
https://doi.org/10.1002/jhet.286
https://doi.org/10.1002/jhet.286
Publikováno v:
Magnetic Resonance in Chemistry. 45:985-988
The synthesis and assignment of 15N and 13C NMR signals of the 1,3,4-oxathiazol-2-one ring in a series of para-substituted 5-phenyl derivatives are reported. DFT calculations of 15N and 13C chemical shifts correspond closely to observed values. Subst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c4aa4b19501a11cb923382ce3233431
https://doi.org/10.1002/mrc.2082
https://doi.org/10.1002/mrc.2082
Publikováno v:
Tetrahedron. 56:5329-5335
Concise and efficient routes to the carboline alkaloids isocanthine (3), isocanthin-6-one (4), 1-methylisocanthine (5), and 1-methylisocanthin-6-one (6) are reported. In each case, the key synthetic step was an intramolecular hetero Diels–Alder rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b5fc9b82239184bfe6cdd484d248d87
https://doi.org/10.1016/s0040-4020(00)00468-3
https://doi.org/10.1016/s0040-4020(00)00468-3
Autor:
Bo Yoon Choi, J. Hodge Markgraf
Publikováno v:
Synthetic Communications. 29:2405-2411
A convenient procedure for the oxidation of benzyl ethers to benzoate esters is reported. Potassium permanganate in dichloromethane with phase transfer catalysis by triethylbenzylammonium chloride (TEBAC) affords products regiospecifically in fair to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43622d5673a702984ded38aaf1312130
https://doi.org/10.1080/00397919908086246
https://doi.org/10.1080/00397919908086246
Autor:
J. Hodge Markgraf, John R. Cort, Manuel Finkelstein, Raymond Chang, Raymond C. Petersen, Michael H. Lavyne, Sidney D. Ross, C.Michael Moore, J. L. Durant, Andrew W. Gross
Publikováno v:
Tetrahedron. 53:10009-10018
The protodediazoniation of aryldiazonium fluoroborates can be effected by warm dimethylformamide (DMF). The conversion of 4-nitrobenzenediazonium fluoroborate to nitrobenzene was studied in detail. Products derived from trapping experiments were cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6000f902b1b7d67c57ac25c748073d47
https://doi.org/10.1016/s0040-4020(97)00343-8
https://doi.org/10.1016/s0040-4020(97)00343-8
Publikováno v:
Synthetic Communications. 27:1285-1290
A convenient method for the conversion of tertiary benzylamines to benzamides by phase transfer oxidation is described. Yields are good. Regioselectivities are reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d90077e65e36990e1b1e425be7239f2
https://doi.org/10.1080/00397919708003367
https://doi.org/10.1080/00397919708003367
Publikováno v:
Tetrahedron. 52:461-470
Carbocyclic analogs ( 10 and 12 ) of canthine ( 1 ) and canthin-6-one ( 2 ) were prepared in three and four steps, respectively, from indole-3-car☐aldehyde. The key step was an intramolecular Diels-Alder reaction carried out in refluxing sulfolane.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::545055f2915ae4eb4ae96aeb14c48076
https://doi.org/10.1016/0040-4020(95)00925-6
https://doi.org/10.1016/0040-4020(95)00925-6
Autor:
J. Hodge Markgraf, Bo Yoon Choi
Publikováno v:
ChemInform. 30
A convenient procedure for the oxidation of benzyl ethers to benzoate esters is reported. Potassium permanganate in dichloromethane with phase transfer catalysis by triethylbenzylammonium chloride (TEBAC) affords products regiospecifically in fair to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5554a735cd702800d111beb41a324eab
https://doi.org/10.1002/chin.199935058
https://doi.org/10.1002/chin.199935058
Autor:
J. Hodge Markgraf, Carolyn A. Stickney
Publikováno v:
ChemInform. 31
The synthesis of N-phenyl lactams by phase transfer oxidation of N,N-(polymethylene) anilines with potassium permanganate is reported.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72388c99a1171345b5e0d37b5e6e3e2c
https://doi.org/10.1002/chin.200027057
https://doi.org/10.1002/chin.200027057
Publikováno v:
ChemInform. 31
Concise and efficient routes to the carboline alkaloids isocanthine (3), isocanthin-6-one (4), 1-methylisocanthine (5), and 1-methylisocanthin-6-one (6) are reported. In each case, the key synthetic step was an intramolecular hetero Diels–Alder rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8a5b3e2a201a2849450a6c306e9465c
https://doi.org/10.1002/chin.200046218
https://doi.org/10.1002/chin.200046218