Results 181 to 190 of about 2,798 (207)

2-(2-Thiazolylhydrazono)indan-1,3-dione

Acta Crystallographica Section C Crystal Structure Communications, 1997
The structural results clearly indicate that 2-(2-thiazolylhydrazono)indan-1,3-dione, C12H7N3O2S, exists as a keto-hydrazone tautomer in the solid state. The indandione and thiazolylhydrazone groups are connected by a C=N bond and the H atom bonded to N1 refines with a normal temperature factor. The entire molecule is essentially planar.
Ozgun, BH, Ozbey, S, Ertan, N, Temel, A
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2-Spiro-indan-1,3-dione

Monatshefte f�r Chemie, 1981
The reaction of 1,3-indandione, formaldehyde and primary amines does not gives doubleMannich bases as described in literature, but the title compounds.
Hans M�hrle, Sigrid D�rnbrack, Hans-Joachim Novak   +2 more
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Heteropolyalanes, ‐Gallanes, ‐Indanes, and ‐Thallanes

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Werner Uhl, Herbert W. Roesky
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Vapor-pressure and enthalpy of vaporization of indan and five methyl-substituted indans

The Journal of Chemical Thermodynamics, 1978
Abstract Vapor-pressure determinations were made for indan, 1,1-dimethylindan, 4,6-dimethylindan, 4,7-dimethylindan, 1,1,4,6-tetramethylindan, and 1,1,4,7-tetramethylindan. The results were used to obtain derived values of enthalpy of vaporization.
A.G. Osborn, D.W. Scott
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Spiro-indans from Cannabis sativa

Phytochemistry, 1986
Abstract Three new spiro-indans were isolated from hashish (Cannabis sativa). Their chemical structures were established by spectroscopic means, and by chemical correlation with cannabispiran and iso-cannabispiran. They were found to be 7-hydroxy-5-methoxyindan-1-spiro-cyclohexane, its isomer 5-hydroxy-7-methoxyindan-1-spirocyclo-hexane and 5,7 ...
Farouk S. El-Feraly, Moshera M. El-Sherei, Farid J. Al-Muhtadi   +2 more
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Polyketones containing indane structure elements

Polymer Bulletin, 1992
Polyketones with indane structure elements were prepared by Friedel-Crafts polycondensation in three different reaction media. Only oligomers or insoluble material could be obtained, probably due to a side reaction of the indane ring, which leads to crosslinking at high conversion.
Gerhard Maier, Dazhong Yang, Oskar Nuyken   +2 more
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Indan-2,2-dicarboxylic acid, C11H10O4

Acta Crystallographica Section C Crystal Structure Communications, 1994
The cyclopentene ring has an envelope conformation with the C atom carrying the carboxyl group lying 0.355 (2) A out of the best plane of the other four C atoms. The cyclopentene torsion angle along the fusion of both rings has a magnitude of -2.5 (3) o .
J. G. Garcia, J. D. Enas, F. R. Fronczek
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Phenyl indane from acorus calamus

Phytochemistry, 1986
Abstract Besides three known compounds, two new compounds, namely Z-3-(2,4,5-trimethoxy phenyl)-2-propenal and a new phenyl indane have been isolated from the rhizomes of Acorus calamus. These compounds have been characterized from their spectral data and by synthesis.
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Synthesis of 2-Sulfonyl Indenes and Indanes

The Journal of Organic Chemistry, 2019
In this paper, we developed facile and high-yield synthetic routes for the preparation of 2-sulfonyl indenes and indanes, including: (i) Amberlyst-15-promoted Knoevenagel reaction of β-ketosulfones and arylaldehydes in refluxing toluene; (ii) Grignard reagent (R'MgBr) or reducing reagent (NaBH4) promoted regio- and/or stereocontrolled 1,4-addition or 1,
Meng-Yang Chang, Yan-Shin Wu, Yu-Lin Tsai, Hsing-Yin Chen   +3 more
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ChemInform Abstract: Aromatische Spinne. 12. Mitt. Synthesen von Spiro[5,6,7,8‐tetrahydrobenzol[f]indan‐ 2,2′‐indan], 2,2′‐Spirobi(5,6,7,8‐tetrahydrobenzol[f]indan) und ihren Derivaten.

Chemischer Informationsdienst, 1985
AbstractDie Titelverbindungen (V) und (VIa) werden auf analogen Wegen aus den mono‐ bzw. bis‐acylierten Spirobiindanen (Ib) bzw. (Ic) synthetisiert [ferner wird die Überführung der (III)‐analogen Vorstufe von (V) in (VIa) beschrieben].
H. NEUDECK, K. + SCHLOEGL, H. TSCHEPLAK
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