Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Veronica K. Majestic"'
Autor:
Veronica K. Majestic, Frank R. Fronczek, George R. Newkome, Paul J. Schilling, Steven F. Watkins
Publikováno v:
Inorganica Chimica Acta. 246:119-123
The 2:2 macrocycle C22H30N6, containing pyridine and piperazine subunits, crystallizes in monoclinic space group C2c with a = 17.614(3), b = 9.696(2), c = 12.662(2) A, β = 111.65(2)°, V = 2010(1) A3, Z = 4. The structure was refined to R = 0.036 fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e392b8beddd29e6a4bdcd069affa6ef
https://doi.org/10.1016/0020-1693(96)05058-x
https://doi.org/10.1016/0020-1693(96)05058-x
Autor:
Perri Anne Spruell, Veronica K. Majestic, Gregory R. Baker, Kevin J. Theriot, George R. Newkome
Publikováno v:
The Journal of Organic Chemistry. 55:2838-2842
A new synthesis of 2,7-dimethyl-1,8-naphthyridine(dmnap) from 2-methyl-1,8-naphthyridine (mnap) upon treatment with 3 equiv of methyllithium is described. Oxidation of dmnap with 8 equiv of N-chlorosuccinimide gave (98%) 2,7-bis(trichloromethyl)-1,8-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b214edd89c51f6411ab5e3af4b4d8c75
https://doi.org/10.1021/jo00296a051
https://doi.org/10.1021/jo00296a051
Publikováno v:
Tetrahedron Letters. 22:3039-3042
The construction of spherical cryptands has been accomplished from bis -diamines by a stepwise quaternization-demethylation sequence. Cryptands with diverse bridges can be easily prepared by this procedure.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20fca2fbff28ebebbee0b9c7ccf943cd
https://doi.org/10.1016/s0040-4039(01)81821-9
https://doi.org/10.1016/s0040-4039(01)81821-9
Publikováno v:
Organic Preparations and Procedures International. 12:345-350
(1980). CONVENIENT DEALKYLATION OF QUATERNARY AMMONIUM SALTS. Organic Preparations and Procedures International: Vol. 12, No. 6, pp. 345-350.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d6c20740fe4f1553faea7574451581c
https://doi.org/10.1080/00304948009356488
https://doi.org/10.1080/00304948009356488
Autor:
Veronica K. Majestic, Norman S. Bhacca, J. D. Wander, Joe D. Sauer, H.D. Braymer, George R. Newkome
Publikováno v:
Carbohydrate Research. 48:1-11
Three nonreducing disaccharides containing D -glucosyl and D -fructosyl groups, namely, “isosucrose” octaacetate ( 3 ), sucrose octaacetate ( 4 ), and “α,α-sucrose” octaacetate ( 5 ), give qualitatively identical mass spectra and are, there
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d944bae30a03869e36f6979ad4ea8469
https://doi.org/10.1016/s0008-6215(00)83509-0
https://doi.org/10.1016/s0008-6215(00)83509-0
Publikováno v:
Tetrahedron Letters. 22:3035-3038
The synthesis and x-ray crystal structure of a spherical cryptand 2 , in which the bridgehead N -electrons are in the in - in configuration and one of the pyridine rings is located inside the cavity of the cryptand, are described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::333b5eb84093fae0f7e405c32ab60151
https://doi.org/10.1016/s0040-4039(01)81820-7
https://doi.org/10.1016/s0040-4039(01)81820-7
Publikováno v:
The Journal of Organic Chemistry. 46:833-839
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::199d7e274ff6f8c3b577035f71f2ba45
https://doi.org/10.1021/jo00318a001
https://doi.org/10.1021/jo00318a001
Publikováno v:
Inorganica Chimica Acta. 77:L47-L49
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3c5c2666fd5b25ab0e2e4dac2aa6958
https://doi.org/10.1016/s0020-1693(00)82563-3
https://doi.org/10.1016/s0020-1693(00)82563-3
Publikováno v:
Synthetic and Structural Problems ISBN: 9783540117667
In general, the pyridinophanes, pyridinocrowns, and pyridinocryptands have been surveyed. The pyridinophanes have been limited to those containing carbon bridging units of two atoms or less. In these instances the pyridinophanes may be bridged at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58d5c657121c2d0fed1e80875d1bd847
https://doi.org/10.1515/9783112597446-003
https://doi.org/10.1515/9783112597446-003
Publikováno v:
Chemischer Informationsdienst. 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fdfb0cb23e90b98dfd574008c0eca32
https://doi.org/10.1002/chin.197921079
https://doi.org/10.1002/chin.197921079