Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Darren K. MacFarland"'
Publikováno v:
Tetrahedron Letters. 47:57-60
A new asymmetric phase-transfer catalyst, designed by combining the chiral building blocks styrene oxide and 2,5-dimethylpyrroline, is described. Catalytic testing using standard glycine imino ester alkylations shows good yields and moderate to good
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ffc34cb4904b230a1b0a2867b772d3
https://doi.org/10.1016/j.tetlet.2005.10.141
https://doi.org/10.1016/j.tetlet.2005.10.141
Publikováno v:
Tetrahedron: Asymmetry. 15:3297-3300
A new asymmetric phase-transfer catalyst is described, along with a new, flexible synthetic scheme using a tartaric acid chloride. Alkylations and Michael reactions on a glycine imino ester show the new catalyst to be an effective phase-transfer cata
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0b646b3696318e9549362492ee33ab5
https://doi.org/10.1016/j.tetasy.2004.09.004
https://doi.org/10.1016/j.tetasy.2004.09.004
Publikováno v:
Tetrahedron: Asymmetry. 15:151-154
Synthesis and characterization of a novel phase-transfer catalyst, 6,6′ di(triethylammoniummethyl)-2,2′-dihexyloxybi-1,1′-naphthalene, are reported. Preliminary catalytic studies on the alkylation of a glycine derivative show the catalyst to be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee5d45dcbbb7bfa2fd165906f1a6732
https://doi.org/10.1016/j.tetasy.2003.10.036
https://doi.org/10.1016/j.tetasy.2003.10.036
Autor:
Darren K. MacFarland
Improvements in contrast agents used in Magnetic Resonanace Imaging (MRI), a powerful tool for medical diagnostics, will substantially increase MRI's reach and utility. Targeted imaging agents that highlight diseased areas form avibrant area of labor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::773e5fa8f0b16275a289d1ea76b036b3
https://doi.org/10.1039/9781849732918-00490
https://doi.org/10.1039/9781849732918-00490
Autor:
Darren K. MacFarland, Kevin A. Walter, Arnold L. Rheingold, Susan E. Kegley, Bruce G. Young, Dirk T. Bergstrom
Publikováno v:
Organometallics. 12:2339-2353
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5156aba053f670f615ae36cac2e3b11
https://doi.org/10.1021/om00030a050
https://doi.org/10.1021/om00030a050
Publikováno v:
ChemInform. 36
A new dicationic asymmetric phase-transfer catalyst, designed by combining chiral elements, is described. Catalytic testing using standard glycine imino ester alkylations shows good yields and moderate enantioselectivities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae9cd778f6cdcf28e392bc1ab4e21a73
https://doi.org/10.1002/chin.200550177
https://doi.org/10.1002/chin.200550177
Publikováno v:
ChemInform. 36
Herein we report the cleaving of aryl alkyl ethers on BINOL derivatives, using the common reducing agent LAH. The cleavage of the alkyl oxygen bond is observed when the BINOL derivative is treated with LAH, in refluxing dioxane, for 60 h. The resulti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abbb0bf6c5c24523d3a98e34881cd8d0
https://doi.org/10.1002/chin.200518092
https://doi.org/10.1002/chin.200518092
Autor:
Darren K. MacFarland, Clark R. Landis
Publikováno v:
Organometallics. 15:483-485
Novel, chiral, aza-15-crown-5-containing phosphite ligands have been designed, synthesized, and characterized. Metal complexes of these ligands are catalytically active and constitute a starting point for the systematic study of the affect of seconda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7a221a9e482cb3e97dadd676764334c
https://doi.org/10.1021/om950819z
https://doi.org/10.1021/om950819z
Publikováno v:
Journal of Chemical Education. 82:109
An advanced laboratory experiment involving the synthesis of the title compound is described. The suitability of the compound for teaching inert-atmosphere techniques and the stability of the product are discussed. The compound has interesting struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd6b0560298be0a02167305a6a3a7efa
https://doi.org/10.1021/ed082p109
https://doi.org/10.1021/ed082p109
Publikováno v:
Journal of Chemical Education. 77:1484
A group experiment synthesizing phthalocyanine dyes in one step from commercially available starting materials is described. The importance of a metal template is explored. The experiment is suitable for a second-semester general chemistry course. De
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dec8e8445d43f610e7a9cb9b1e56e3f7
https://doi.org/10.1021/ed077p1484
https://doi.org/10.1021/ed077p1484