Results 1 to 10 of about 887 (120)

Lignans of Sesame (Sesamum indicum L.): A Comprehensive Review

open access: yesMolecules, 2021
Major lignans of sesame sesamin and sesamolin are benzodioxol--substituted furofurans. Sesamol, sesaminol, its epimers, and episesamin are transformation products found in processed products.
Mebeaselassie Andargie   +4 more
doaj   +1 more source

Facile Conversion of o-Quinones into 1,3-Dioxoles [PDF]

open access: yesOrganic Letters, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Belen, Batanero, Fructuoso, Barba
openaire   +2 more sources

4-(Bromomethyl)-1,3-dioxol-2-one

open access: yesActa Crystallographica Section E Crystallographic Communications, 2014
[80715-25-9] C4H3BrO3 (MW 178.97) 1S/C4H3BrO3/c5-1-3-2-7-4(6)8-3/h2H,1H2 InChIKey = KFZJRSPXJHVSCX-UHFFFAOYSA-N (highly functionalized/oxygenated reagent for allylation of carbonyl compounds; synthetic equivalent of 1-hydroxyacetone enolate; synthetic equivalent of a hydroxyacetophenone enolate; alkylating agent ...
Radomir N. Saicic, Veselin Maslak
openaire   +4 more sources

Functionalization of 6-Nitrobenzo[1,3]dioxole with Carbonyl Compounds via TDAE methodology [PDF]

open access: yesMolecules, 2005
We report herein the synthesis of substituted 2-(6-nitrobenzo[1,3]dioxol-5-yl)-1- aryl ethanols and 2-(6-nitrobenzo[1,3]dioxol-5-yl)-propionic acid ethyl esters from the reaction of 5-chloromethyl-6-nitrobenzo[1,3]dioxole with various aromatic carbonyl and α- carbonyl ester derivatives using the tetrakis(dimethylamino)ethylene (TDAE) methodology.
Amiri-Attou, Ouassila   +2 more
openaire   +4 more sources

Synthesis and characterization of novel benzo[d][1,3]dioxole substituted organo selenium compounds: X-ray structure of 1-((benzo[d][1,3]dioxol-5-yl)methyl)-2-((benzo[d] [1,3]dioxol-6-yl)methyl)diselane

open access: yesJournal of Chemical Sciences, 2015
An expeditious synthesis of novel organoselenium compounds (2–5) incorporating benzo[d] [1,3]dioxole subunit has been reported. All these newly synthesized compounds have been characterized by elemental analysis and various spectroscopic techniques viz., multinuclear NMR (1H, 13C and 77Se), IR and mass spectrometry.
YOGESH NAGPAL, RAJEEV KUMAR, K K BHASIN
openaire   +2 more sources

Trifluoroacetic Acid-Mediated Oxidative Self-Condensation of Acetophenones in the Presence of SeO2: A Serendipitous Approach for the Synthesis of Fused [1,3]Dioxolo[4,5‑d][1,3]dioxoles

open access: yesACS Omega, 2021
Ibakyntiew D. Marpna   +6 more
doaj   +1 more source

Derivate des Benzo[1.3] dioxols, 421 Über Amino-benzo[1.3]dioxole / Derivatives of 1.3-Benzodioxoles, 42 Am ino-1,3-benzodioxoles

open access: yesZeitschrift für Naturforschung C, 1978
Abstract We describe the preparation of the amino-1,3-benzodioxoles 1b-10b. They were prepared by reduction of 5-nitro-(1a), 6-nitro-5-methoxy-(3a), 6-nitro-5-methoxy-(4a) , and 5-nitro-4,7-dimethoxy-1,3-benzodioxole (7a) with hydrogen and palladium as catalyst.Further the amides of 1,3-benzodioxole- 4-(2a) , 4-methoxy-1,3-benzodioxole ...
Franz Daliacker   +2 more
openaire   +1 more source

2-Oxo-1,3-dioxoles as Specific Substrates for Measurement of Arylesterase Activity.

open access: yesChemical and Pharmaceutical Bulletin, 1991
Various 4-arylthiomethyl-2-oxo-1,3-dioxole derivatives IIIa-o were synthesized. Their hydrolysis rates by arylesterase (EC 3.1.1.2) and cholinesterase (EC 3.1.1.8) in human serum were evaluated. Some of them were not hydrolyzed by cholinesterase, but were hydrolyzed easily by arylesterase. Among the substrates, sodium 4-((5-methyl-2-oxo-1,3-dioxol-4-yl)
H, Kawai   +5 more
openaire   +3 more sources

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