Results 81 to 90 of about 887 (120)
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ChemInform, 1991
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M.‐H. HUNG, P. R. RESNICK
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M.‐H. HUNG, P. R. RESNICK
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Synthesis of 2,2-functionalized benzo[1,3]dioxoles
Tetrahedron, 2009Highly functionalized catechol ketals exhibiting either a tert-butyl moiety or a spiro center in position 2 are synthesized by ketalization and functionalized in a sequence of subsequent transformations. By a specific ketalization protocol catechol ketals of enolizable β-keto esters can be prepared. With the succeeding steps these compounds incorporate
Nader M. Boshta +2 more
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ChemInform Abstract: SYNTHESIS OF SUBSTITUTED 1,3‐DIOXOLES
Chemischer Informationsdienst, 1983AbstractDie Isomerisierung von 4‐Methylen‐l ,3‐ dioxolanen (I) zu 4 Methyl‐l ,3‐dioxolen (II) mit Kalium‐tert.‐butoxid bzw. mit dem schwach sauren Ionenaustauscher Lewatit CNP 80 wird eingehend untersucht.
J. MATTAY, W. + THUENKER, H.‐D. SCHARF
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Photochemical cycloadditions of 1,3-dioxoles to anisole
Journal of the Chemical Society, Perkin Transactions 1, 1987Anisole yields both ortho- and meta-cycloadducts upon irradiation in the presence of 1,3-dioxole and 2,2-dimethyl-1,3-dioxole. The mode and the regio- and stereo-selectivities of these cycloadditions are rationalized on the basis of the exciplex–zwitterion mechanism.
Jochen Mattay +4 more
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Studies of dioxole ring substituted 3,4-methylenedioxyamphetamine (MDA) analogues
Pharmacology Biochemistry and Behavior, 1989The 3,4-ethylidenedioxy and 3,4-isopropylidenedioxy analogues, EDA and IDA, respectively, of 3, 4-methylenedioxyamphetamine (MDA) were compared to MDA in drug-stimulated [3H]-serotonin overflow from prelabelled rat hippocampal slices, [3H]-dopamine overflow from prelabelled rat caudate slices, in their ability to displace the 5-HT2 agonist R-[125I]-DOI
D E, Nichols +4 more
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INHALATION TOXICITY OF DIOXOLE AND DIOXOLANE COMPOUNDS IN THE RAT
Drug and Chemical Toxicology, 2001Four chemicals (Dioxole 418, Dioxolane 418, Dioxolane 416 and Dioxolane 456) which are used as stabilizers in highresolution image were tested or both their acute and repeated inhalation toxicity in the rat using nose-only exposures. Acute studies determined the lethal concentrations following a single 4-hour exposure; repeated exposure inhalation ...
G L, Kennedy, A J, O'Neill, R, Valentine
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Macromolecules, 1993
Teflon-AF, based on the perfluoro-2,2-dimethyl-1,3-dioxole monomer (1), is a new class of high-T g amorphous fluoroplastics with enhanced properties over traditional fluoropolymers. New monomer and polymer chemistrythat relates to fluorodioxole molecules was explored.
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Teflon-AF, based on the perfluoro-2,2-dimethyl-1,3-dioxole monomer (1), is a new class of high-T g amorphous fluoroplastics with enhanced properties over traditional fluoropolymers. New monomer and polymer chemistrythat relates to fluorodioxole molecules was explored.
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Anomeric Effect in 1,3-Dioxole: A Theoretical Study
Journal of the American Chemical Society, 1996A theoretical analysis on planar and puckered-ring conformations of cyclopentadiene, 2,3-dihydrofuran, and 1,3-dioxole is carried out to test the conclusion of Laane and co-workers (J. Am. Chem.
D. Suárez, T. L. Sordo, J. A. Sordo
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SRN1 Reactions in the Nitrobenzo[1,3]dioxole Series.
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
J. Meuche-Albeny +3 more
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ChemInform Abstract: Synthesis of 2,2‐Functionalized Benzo[1,3]dioxoles.
ChemInform, 2009AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Nader M. Boshta +2 more
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