Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Edward M, Treadwell"'
Publikováno v:
Chemical Communications. 55:1786-1789
Benzobis(imidazolium) salts ([BBI-H2-R4]2+, R = alkyl, aryl) interact with crown ethers through a combination of hydrogen bonds, ion–dipole, and π–π stacking interactions to form starburst [24]pseudo-rotaxanes. This new recognition motif allows
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ece718156dab093c18c21fe7e3ecc26
https://doi.org/10.1039/c8cc09936g
https://doi.org/10.1039/c8cc09936g
Autor:
Bret R. Van Ausdall, Edward M. Treadwell, Joel S. Southern, Ellen A. Keiter, Kraig A. Wheeler, Richard L. Keiter, Michael F. Cuddy
Publikováno v:
Organometallics. 37:3742-3749
The linkage isomers [(OC)5W{κ1-PPh2CH2CH(PPh2)[P(p-tol)2]}] 3a, [(OC)5W{κ1-P(p-tol)2CH(PPh2)CH2PPh2}] 3b, and [(OC)5W{κ1-PPh2CH[P(p-tol)2]CH2PPh2}] 3c isomerize at ambient temperatures to give a mixture of the three isomers in equilibrium. Rates o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47e1ace729915e109b089c81435c74ea
https://doi.org/10.1021/acs.organomet.8b00471
https://doi.org/10.1021/acs.organomet.8b00471
Publikováno v:
Chemical communications (Cambridge, England). 55(12)
Benzobis(imidazolium) salts ([BBI-H2-R4]2+, R = alkyl, aryl) interact with crown ethers through a combination of hydrogen bonds, ion-dipole, and π-π stacking interactions to form starburst [24]pseudo-rotaxanes. This new recognition motif allows the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::320f7d1f71d1b0b80bb5a13fc9cb8ee5
https://pubmed.ncbi.nlm.nih.gov/30667003
https://pubmed.ncbi.nlm.nih.gov/30667003
Publikováno v:
The Journal of Organic Chemistry. 64:8718-8723
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::398b08ac9aff1bbc132287054a6ef64a
https://doi.org/10.1021/jo9908795
https://doi.org/10.1021/jo9908795
Publikováno v:
ChemInform. 34
[reaction: see text] A strategy for synthesis of the hexahydroxanthene moiety of the natural products schweinfurthin A, B, and D is described. The relative stereochemistry in the key cationic cyclization step is established through the preference of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a8867ca269efd21da8d1fd279d72779
https://doi.org/10.1002/chin.200310208
https://doi.org/10.1002/chin.200310208
Publikováno v:
Journal of natural products. 62(2)
A new prenylated benzoic acid, arieianal [3,4-dihydroxy-5-(E,E, E-11'-formyl-3',7',15'-trimethylhexadeca-2',6',10', 14'-tetraenyl)benzoic acid, 1], has been isolated from the leaves of Piper arieianum and assigned this structure on the basis of its s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5e03403852055e876126613eef6ed56
https://pubmed.ncbi.nlm.nih.gov/10075790
https://pubmed.ncbi.nlm.nih.gov/10075790
Autor:
Edward M. Treadwell
Publikováno v:
Acta Crystallographica Section E Structure Reports Online. 62:o5899-o5900
The molecule of the title compound [systematic name: 3-(4-methylphenyl)-1-phenylprop-2-enone], C16H14O, displays a significant deviation from planarity; the torsion angle of the carbonyl oxygen and the three enone C atoms is 16.3 (3)°, while t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c0fa4183a1028694a67d0643bf605ea
https://doi.org/10.1107/s1600536806050070
https://doi.org/10.1107/s1600536806050070
Autor:
Tung Yin Lin, Edward M. Treadwell
Publikováno v:
Journal of Chemical Education. 85:1541
An experiment is described involving the nitration of ortho or meta monosubstituted benzoic acids (XC6H4CO2H, X = Halogen, Me, OH, or OMe) and monochlorinated acetanilides with nitric acid to determine the regioselectivity of addition by 1H NMR spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c504429b13ef296fa56f1f5b96bc6a44
https://doi.org/10.1021/ed085p1541
https://doi.org/10.1021/ed085p1541
Autor:
Thomas P. Clausen, Edward M. Treadwell
Publikováno v:
Ethnobotany Research and Applications. 6:319
Hedysarum mackenzii (wild sweet pea, bear root) is widely regarded as toxic and warnings about confusing it with its edible cousin H. alpinum (Eskimo potato) abound. To find the chemical basis for this claim, we performed an exhaustive comparison of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c096232ca5e701c8151843752cdc244
https://doi.org/10.17348/era.6.0.319-321
https://doi.org/10.17348/era.6.0.319-321
Autor:
Edward M. Treadwell, T. Howard Black
Publikováno v:
Journal of Chemical Education. 82:1046
The differences and similarities in the physical behavior of enantiomers and diastereomers can easily be demonstrated using the commercial stereoisomers (?)-menthol, (+)-menthol, (+)-isomenthol, and (+)-neomenthol. Thin-layer chromatography and melti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc0a1944fc2cce85f2de29b6492fce44
https://doi.org/10.1021/ed082p1046
https://doi.org/10.1021/ed082p1046