Zobrazeno 1 - 10
of 24
pro vyhledávání: '"and Ralph R. Roberts"'
Autor:
Gabriella G. Szekely, Duane D. Fansler, Lester H. Mcintosh, Kevin M. Saint Paul Lewandowski, Stephen B. Roscoe, Babu N. Gaddam, Douglas A. Hanggi, Jerald K. Rasmussen, Dean M. Moren, Larry R. Krepski, John L. Battiste, Ralph R. Roberts, Khalid A. M. Thakur, Steven M. Heilmann, Sadanand V. Pathre, David A. Weil
Publikováno v:
Journal of Macromolecular Science, Part A. 40:755-790
Results of the acid catalyzed oligomerization of 2‐alkenyl‐5(4H)‐oxazolones are reported. Employing LC–MS and preparative LC methods, the oligomeric mixtures were characterized by NMR analyses and were discovered to consist of exclusively cyc
Autor:
Marie A. Boulos, Eileen M. Haus, Marc D. Radcliffe, John P. Baetzold, Brian T. Weber, Jane K. Wardhana, Manoj Nirmal, John J. Stradinger, Amy J. Hite, Ralph R. Roberts, Mark J. Pellerite, Patrick M. Campbell
Publikováno v:
SID Symposium Digest of Technical Papers. 43:172-174
Cholesteric liquid crystals are an important class of optical materials for bistable full-color reflective displays. ITO and PEDOT are commonly used for transparent electrodes in ChLCD constructions. Both have limitations. Recent 3M work has shed lig
Autor:
Kenneth R. Scott, Ralph R. Roberts, Carlynn A. Smith, Ivan O. Edafiogho, Angela M. Goodwin, Neville Cooke, James P. Stables, Ray J. Butcher, Donna S Cox, Natalie D. Eddington
Publikováno v:
European Journal of Medicinal Chemistry. 37:635-648
Due to the exceptional anticonvulsant activity displayed by substituted aniline enaminones, related pyridine derivatives and phenothiazines synthesised in our laboratories, the further investigation of various aromatic heterocycles was undertaken. Co
Autor:
Khalid A. M. Thakur, Chris J. Rueb, Kevin M. Saint Paul Lewandowski, Stephen A. Johnson, Larry R. Krepski, Wayne K Larson, Daniel J. Mcgurran, Mark D. Purgett, Daniel E. Mickus, Ralph R. Roberts, Steven D. Koecher, Steven M. Heilmann, Sadanand V. Pathre
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 40:3037-3045
A novel type of crosslinkable waterborne polyurethane ionomer was prepared by the acetone process. Two new types of sulfonated diols compatible with this process were synthesized from dimethyl 5-sodium sulfo isophthalate using a one- or two-stage met
Publikováno v:
Journal of the American Chemical Society. 119:12292-12299
A computational investigation of the conformational preferences of 2-phenethylamine has been carried out with a variety of techniques. To determine the intrinsic (in the absence of a solvent medium) conformational preferences of the 2-phenethylamine
Publikováno v:
Tetrahedron Letters. 38:4029-4032
The lithium enolate of trimethylsilyl acetate ( 1 ) undergoes a 1,3-O → C migration of the trimethylsilyl group.
Publikováno v:
The Journal of Organic Chemistry. 61:4395-4399
Reactions of (triphenylsilyl)ethylene oxide (1) with simple Grignard reagents such as EtMgBr and PhMgBr have been reported to yield crystalline hydroxysilanes assigned as the alpha-hydroxy silanes expected from beta opening of the epoxide. Reinvestig
Publikováno v:
Tetrahedron Letters. 35:3021-3024
Ethyl alka-2,3-dienoates and 4-tetrahydropyranyloxyalk-2-ynenitriles provide a 3-atom fragment when reacted with acetamidine in tetrahydrofuran, to furnish 2-methylpyrimidin-4(3H)-ones and 4-amino-2-methyl-6-(1-tetrahydropyranyloxyalkyl)pyrimidines,
Autor:
Stephen R. Landor, Ralph R. Roberts
Publikováno v:
Tetrahedron Letters. 34:5681-5684
5-Cyano-6-(1-hydroxyalkyl)-4H-1,4-thiazines, derived from the corresponding 4-tetrahydropyranyloxyacetylenic nitriles, undergo base catalysed ring closure to give 3H-furo[3,4-b]-1,4-thiazines.
Publikováno v:
ChemInform. 22