Zobrazeno 1 - 10
of 27
pro vyhledávání: '"J.Michael Williams"'
Autor:
J.Michael Williams, Virginie Langlois
Publikováno v:
J. Chem. Soc., Perkin Trans. 1. :1611-1614
Methyl 3′,4′-O-isopropylidene-β-lactoside was used as an intermediate in the synthesis of the 3′,4′-di-O-hexyl- and 3′,4′-di-O-octyl-β-lactoside. The following seven partially acetylated derivatives were prepared by partial O-acetylatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e16e82c88bbb28497ea802c63b47be3
https://doi.org/10.1039/p19950001611
https://doi.org/10.1039/p19950001611
Autor:
Ben-Li Zhang, Gérard J. Martin, Maryvonne L. Martin, J.Michael Williams, Bernadette Quemerais
Publikováno v:
Phytochemical Analysis. 5:105-110
The site-specific natural isotope fractionation of hydrogen in glucose was investigated by nuclear magnetic resonance spectroscopy (SNIF-NMR). Several glucose samples obtained from plants undergoing either C, (potato, barley, sunflower, wheat) or C4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d73c1a5c56ab1f12c19957c6fa559480
https://doi.org/10.1002/pca.2800050304
https://doi.org/10.1002/pca.2800050304
Autor:
J.Michael Williams, Virginie Langlois
Publikováno v:
J. Chem. Soc., Perkin Trans. 1. :2103-2106
In order to study the physical properties of lactose-derived surfactants, methyl 4′, 6′-di-O-hexyl-β-lactoside and methyl 4′, 6′-di-O-octyl-β-lactoside were prepared. The 4′, 6′-O-isopropylidene ketal was used as a temporary protecting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fc6e6984ad9c4b611bd435747d12bdd
https://doi.org/10.1039/p19940002103
https://doi.org/10.1039/p19940002103
Publikováno v:
Carbohydrate Research. 245:57-64
In order to apply Site-specific Natural Isotope Fractionation (SNIF) to chemical, biochemical, and environmental studies of d -glucose, there is a need for readily prepared compounds which give 2 H NMR spectra with all or most signals resolved. Chang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b008eb9891b200b003e8cb2ce1c19d9e
https://doi.org/10.1016/0008-6215(93)80059-n
https://doi.org/10.1016/0008-6215(93)80059-n
Publikováno v:
Carbohydrate Research. 235:C9-C12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d03bc236d86b0be4fb99a6f3801fc620
https://doi.org/10.1016/0008-6215(92)80103-8
https://doi.org/10.1016/0008-6215(92)80103-8
Publikováno v:
Carbohydrate Research. 205:181-190
Analysis of the oligosaccharides released from pig gastric mucus glycopolypeptides by hydrazinolysis showed that degradation had occurred. Nitrosation of the products followed by reduction gave a mixture that had a low content of 2,5-anhydro-D-talito
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8418595f2c1b7fb78229bf2a1af3b7a8
https://doi.org/10.1016/0008-6215(90)80138-s
https://doi.org/10.1016/0008-6215(90)80138-s
Autor:
John R. Allegra, J.Michael Williams
Publikováno v:
Annals of Emergency Medicine. 23:1368-1370
Spontaneous cervical epidural hematoma is a rare cause of neck pain. We present the case of a 64-year-old woman who presented to the emergency department with neck pain from a partial Brown-Sequard syndrome secondary to spontaneous cervical epidural
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc74a50accdf06ee8102a5967974a916
https://doi.org/10.1016/s0196-0644(94)70363-9
https://doi.org/10.1016/s0196-0644(94)70363-9
Publikováno v:
Carbohydrate Research. 42:168-172
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf225e9feac4314687315d5ca039bf50
https://doi.org/10.1016/s0008-6215(00)84111-7
https://doi.org/10.1016/s0008-6215(00)84111-7
Autor:
David A. Evans, J.Michael Williams
Publikováno v:
Tetrahedron Letters. 29:5065-5068
Imines derived from chiral α,β-epoxyaldehydes have been shown to be useful chiral glyoxal imine synthons in the ketene-imine cycloaddition reaction. This process, which proceeds with high levels of reaction diastereoselection, affords enantiomerica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18b68764e43b3024d4ed2f8bc222082a
https://doi.org/10.1016/s0040-4039(00)80680-2
https://doi.org/10.1016/s0040-4039(00)80680-2
Autor:
Ping W. Tang, J.Michael Williams
Publikováno v:
Carbohydrate Research. 136:259-271
The 1-deoxy-1-(2-pyridylamino)alditols prepared by reductive amination of lactose, 2-acetamido-2-deoxy- d -glucose, and 2,5-anhydro- d -mannose have been characterised, and the efficiency of the reductive amination procedure, especially with 2,5-anhy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33a57906cf8b2b1fe7f5c61e7b434b36
https://doi.org/10.1016/0008-6215(85)85202-2
https://doi.org/10.1016/0008-6215(85)85202-2