C17H22O3S, M(r) = 306.407, orthorhombic, P2(1)2(1)2, a = 13.327 (5), b = 19.277 (8), c = 6.361 (2) angstrom, V = 1634 (1) angstrom3, Z = 4, D(x) = 1.245 Mg m-3, lambda(Cu Kalpha) = 1.54178 angstrom, mu = 1.77 mm-1, F(000) = 656, T = 293 K, R = 0.043 for 2574 observed reflections. Two crystalline forms of the title compound have been obtained but only one (form II) has given suitable crystals for X-ray structure analysis. The five-membered ring has an envelope conformation with C(2) 0.60 (1) angstrom out of the plane defined by the other four atoms. The absolute configuration has been established and appears to be identical to that of camphoric acid used in the synthesis. Molecules form dimers around the twofold axis by means of hydrogen bonds between their carboxylic groups.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsoxazolines by cycloadditions of mesitonitrile oxide with benzo[b]thiophene S-oxide and S,S-dioxide. Structural studies, theoretical explanations, and kineticsArmand Bened, Robert Durand, Daniel Pioch, Patrick Geneste, Jean Paul Declercq, Gabriel Germain, Joelle Rambaud, Raymond Roques, Claude Guimon, and Genevieve Pfister GuillouzoCite this: J. Org. Chem. 1982, 47, 12, 2461–2465Publication Date (Print):June 1, 1982Publication History Published online1 May 2002Published inissue 1 June 1982https://doi.org/10.1021/jo00133a043RIGHTS & PERMISSIONSArticle Views139Altmetric-Citations20LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (598 KB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
We determined the chemical composition, confirmed on X-ray diffraction analysis, of 10 brand commercially available dental gutta-percha cones. We observed a great chemical heterogeneity among gutta-percha cones of different origin as well as within the same brand between small and large sizes.
