Results 91 to 100 of about 887 (120)

Derivate des Methylendioxybenzols, XXXVII. Synthese des Benzotris[1,3]dioxols

Justus Liebigs Annalen der Chemie, 1975
AbstractBenzotris[l,3]dioxol (5) wird über die Stufen des 3,4‐(Methylendioxy)brenzkatechins (1 d) und des Benzo[l,2‐d: 3,4‐d′]bis[l,3]dioxol‐4,5‐diols (2 j) dargestellt.
Franz Dallacker, Joachim Krause
openaire   +1 more source

On the non-planarity of 1,3-dioxole and 1,3-dioxolane

Chemical Physics Letters, 2010
Abstract The conformational preferences of 1,3-dioxole and 1,3-dioxolane are explained on the basis of the QTAIM electron density analysis of B3LYP/6-311++G(2d,2p) electron distributions, supporting the interpretation of the anomeric effect previously proposed by Vila and Mosquera [14] . Thus, distances from methylenic hydrogens to oxygen lone pairs
Antonio Vila, Ricardo A. Mosquera
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ChemInform Abstract: A New Synthesis of 4,5‐Unsubstituted 1,3‐Dioxoles.

ChemInform, 1987
AbstractThe 1,3‐dioxolanes (I) are converted to the 1,3‐dioxoles (IV) by perester oxidation and subsequent thermolysis.
L. MEIER, H.‐D. SCHARF
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Thermal rearrangements of some α-aroyl epoxides into dioxoles

J. Chem. Soc., Chem. Commun., 1972
Thermal rearrangement of α-cyano-α-oxo-epoxides quantitatively affords the corresponding dioxoles, which are formed by initial cleavage between the two carbon atoms of the starting epoxide ring.
Albert Robert, Bruno Moisan
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Rearrangement thermique des α-ceto, α-cyano epoxydes en dioxoles

Tetrahedron, 1974
Resume La thermolyse des α-cyano α-ceto epoxydes en dioxoles constitue un nouveau rearrangement des α-ceto epoxydes. La plus ou moins grande reactivite des epoxydes etudies est liee a la nature des substituants de l'epoxyde et a la polarite du milieu reactionnel.
B. Moisan, A. Robert, A. Foucaud
openaire   +1 more source

2-Thiono-1,3-dioxol-4-ene

2001
[37635-87-3] C3H2O2S (MW 102.12) InChI = 1S/C3H2O2S/c6-3-4-1-2-5-3/h1-2H InChIKey = MMGCXSBBWCOBEX-UHFFFAOYSA-N (dienophile in Diels–Alder reactions;1 acetylene equivalent in cycloaddition reactions;2 source of ketene;3 forms dication dichalcogenides with strong Lewis acids4) Alternate Name: vinylene thionocarbonate.
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“New route to 2,2-difluoro-1,3-dioxoles”

1993
11th Winter Conference, St.Petersburg, USA (1993).
NAVARRINI, WALTER MAURIZIO, V. TORTELLI, A. ZEDDA, A. RUSSO   +3 more
openaire   +1 more source

On the Cationic Polymerization of 2,2-Dimethyl-1,3-dioxole and 2,2-Diphenyl-1,3-dioxole

Macromolecules, 1979
M. K. Akkapeddi, H. K. Reimschuessel
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The chemistry of fluorinated dioxoles and dioxolanes. Part 1. Thermal rearrangement of fluorinated dioxoles

Journal of the American Chemical Society, 1990
Ming H. Hung, Paul R. Resnick
openaire   +1 more source

1,3-Dioxoles and 1,3-Oxathioles

2022
openaire   +1 more source