ORTEP-3 for Windows - a version of ORTEP-III with a Graphical User Interface (GUI)
01 Oct 1997-Journal of Applied Crystallography (International Union of Crystallography)-Vol. 30, Iss: 5, pp 565-565
TL;DR: L Lists of software presented and~or reviewed in the Journal of Applied Crystallography are available on the World Wide Web at the above address, together with information about the availability of the software where this is known.
Abstract: Computer Program Abstracts The category Computer Program Abstracts provides a rapid means of communicating up-to-date information concerning both new programs or systems and significant updates to existing ones. Following normal submission, a Computer Program Abstract will be reviewed by one or two members of the IUCr Commission on Crystallographic Computing. It should not exceed 500 words in length and should follow the standard format given on page 189 of the June 1985 issue of the Journal [J. Appl. CrysL (1985). 18, 189190] and on the World Wide Web at http://www.iucr. ac. uk/journals/jac/software/. Lists of software presented and~or reviewed in the Journal of Applied Crystallography are available on the World Wide Web at the above address, together with information about the availability of the software where this is known. J. App/. CrysL (1997). 30, 565 ORTEP-3 for Windows a version of ORTEP-III with a Graphical User Interface (GUI)
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TL;DR: In this paper, a new one-pot synthetic route to tetrahydrofuran derivatives, which were unexpectedly produced under basic conditions by intramolecular etherification of substituted five-membered cyclic carbonates, was reported.
52 citations
TL;DR: In this paper, a distorted tetrahedral geometry of Pt(EtXantphos)2 has been characterized by an X-ray diffraction study, where the average chelate bite angle is 108.2° and the dihedral angle between the two planes formed by the phophorus atoms of each diphophine ligand and platinum is 80.4°.
52 citations
TL;DR: Both enantiomers of crispine A were liberated from their respective DBTA salts in ≥98:2 er's which were determined by proton and carbon NMR spectroscopy, utilizing (R)-(+)-tert-butylphenylphosphinothioic acid (+)-15 as chiral solvating agent.
Abstract: The stereoselective convergent total syntheses of both enantiomers of the tetrahydroisoquinoline (THIQ) alkaloid crispine A are described. The THIQ precursors (−)-6 (90:10 dr) and (−)-11 (85:15 dr) were prepared from the alkylation–reduction sequence of a common α-amino nitrile (+)-4 derivative that has been conveniently prepared by anodic cyanation. Elaboration of the pyrrolidine ring of the title compound was cleanly achieved by two efficient ring closures methods involving (a) the displacement of a halogen atom and (b) the formation of a cyclic iminium cation to afford (−)-crispine A in 90% and 85% yields, respectively. A crystallization of enantioenriched (−)-crispine A (90:10 er) with 1 equiv of (−)-DBTA afforded the tartrate salt (−)-14 (≥98:2 dr) in 81% yield. The absolute S configuration of (−)-crispine A was simply deduced from examination of the X-ray data of tartrate salt (−)-14. Likewise, the natural (+)-crispine A was prepared in seven workup steps in an overall 30% yield, and reciprocal crys...
52 citations
TL;DR: In this paper, the copper complex of 2,6-bis(1-salicyloylhydlhydrazonoethyl)pyridine, H4daps, has been prepared by an electrochemical procedure and characterised by elemental analysis, IR, FAB mass spectroscopy, ΛM, magnetic susceptibility measurements and EPR studies.
Abstract: The copper complex of 2,6-bis(1-salicyloylhydrazonoethyl)pyridine, H4daps, has been prepared by an electrochemical procedure and characterised by elemental analysis, IR, FAB mass spectroscopy, ΛM, magnetic susceptibility measurements and EPR studies. The molecular structures of the ligand H4daps (1) and its copper complex [Cu(H2daps)(H2O)]2·2CH3CN (3) have been determined by X-ray diffraction studies. The ligand shows in the solid state a syn-open conformation that allows it to act as a binucleating ligand, after a conformational change, as is shown by the study of the copper dihelicate 3. This compound contains the dianionic ligand [H2daps]2− in an anti-open conformation. The comparative study of this complex, with others previously reported, allows us to confirm that the conformational rearrangement undergone by H4daps upon complexation depends strongly on the metal nature and its stereochemical preferences.
52 citations
TL;DR: A series of (2-aminothiazol-4-yl)methylester (5a-t) derivatives were synthesized in good yields and characterized by (1)H N MR, (13)C NMR, mass spectral and elemental analyses and displayed interesting antimicrobial activity.
52 citations