Inclusion of trans-resveratrol in methylated cyclodextrins: synthesis and solid-state structures

• Lee Trollope,
• Dyanne L. Cruickshank,
• Terence Noonan,
• Susan A. Bourne,
• Milena Sorrenti,
• Laura Catenacci and
• Mino R. Caira

Beilstein J. Org. Chem. 2014, 10, 3136–3151, doi:10.3762/bjoc.10.331

• -independent complex units of TMA·RSV·6.25H2O (A and B), with only the major component of disorder shown for RSV in host B (a), and the non-H atom and methylglucose ring nomenclature illustrated for host A as representative (b). For clarity, host H atoms have been omitted. Representative atomic labelling for

• ]. The components of the disorder model for RSV in its inclusion complex with TMB (s.o.f. = 0.73 for the major component A (blue) and 0.27 for the minor component B (green)). The asymmetric unit in the crystal of TMB·RSV·5.6H2O (a), and the non-H atom and methylglucose ring nomenclature illustrated for

• complex DMB·RSV·4.0H2O (a), ring and atomic nomenclature for the host molecule DMB (b), and structure and atomic numbering of the included RSV molecule (c). Space-filling model of the inclusion complex DMB·RSV·4.0H2O showing the encapsulation of part of the RSV molecule by the host DMB (left) and a

Reaction of selected carbohydrate aldehydes with benzylmagnesium halides: benzyl versus o-tolyl rearrangement

• Maroš Bella,
• Bohumil Steiner,
• Vratislav Langer and
• Miroslav Koóš

Beilstein J. Org. Chem. 2014, 10, 1942–1950, doi:10.3762/bjoc.10.202

• ) groups, respectively. Finally, the o-tolyl structure and benzyl structure of the moieties at C-5 atom of ketone 8 (Figure 1) and ketone 9 (Figure 2), respectively, (the numbering of the atoms is in accordance with the numbering recommended by the IUPAC Nomenclature of Carbohydrates [23]) was

Unusual polymorphism in new bent-shaped liquid crystals based on biphenyl as a central molecular core

• Anna Kovářová,
• Svatopluk Světlík,
• Václav Kozmík,
• Jiří Svoboda,
• Vladimíra Novotná,
• Damian Pociecha,
• Ewa Gorecka and
• Natalia Podoliak

Beilstein J. Org. Chem. 2014, 10, 794–807, doi:10.3762/bjoc.10.75

• polarization vector, the nomenclature of B1Rev phase was proposed [39][40][41]. For SmCP phases, in an applied electric field the rotation of molecules around the tilt cone is preferred. The optical switching of the columnar B1Rev type of phases is very complex and the rotation around the long molecular axis

New tridecapeptides of the theonellapeptolide family from the Indonesian sponge Theonella swinhoei

• Annamaria Sinisi,
• Barbara Calcinai,
• Carlo Cerrano,
• Henny A. Dien,
• Angela Zampella,
• Claudio D’Amore,
• Barbara Renga,
• Stefano Fiorucci and
• Orazio Taglialatela-Scafati

Beilstein J. Org. Chem. 2013, 9, 1643–1651, doi:10.3762/bjoc.9.188

• ]+, corresponding to the introduction of 32 mass units (MeOH) in the molecule, the ESIMS/MS spectrum provided several fragment ion peaks corresponding to N-terminus fragments due to the cleavage of the amide bond, and referred to as the b series in Roepstorff and Fohlman nomenclature [20]. In particular, the

A study on electrospray mass spectrometry of fullerenol C₆₀(OH)₂₄

• Mihaela Silion,
• Andrei Dascalu,
• Mariana Pinteala,
• Bogdan C. Simionescu and
• Cezar Ungurenasu

Beilstein J. Org. Chem. 2013, 9, 1285–1295, doi:10.3762/bjoc.9.145

• compounds in aqueous and ammonia media, in both negative and positive ionization mode at a capillary voltage of 4.5 kV and a fragmentor voltage of 400 V with no C60-cage fragmentation. Results and Discussion Nomenclature and ionization mechanisms In the discussion, we will use the expressions protonated [M

Photoionisation of the tropyl radical

• Kathrin H. Fischer,
• Patrick Hemberger,
• Andras Bodi and
• Ingo Fischer

Beilstein J. Org. Chem. 2013, 9, 681–688, doi:10.3762/bjoc.9.77

• vibrational frequencies unscaled values are given below. We note that the computations have been carried out in the Abelian point groups Cs or C2v. The vibrational modes were assigned following the nomenclature of Lee and Wright [9], which has also been used by Pino et al. [17]. In order to compare the FC

Amino-substituted diazocines as pincer-type photochromic switches

• Hanno Sell,
• Christian Näther and
• Rainer Herges

Beilstein J. Org. Chem. 2013, 9, 1–7, doi:10.3762/bjoc.9.1

• or with other molecules. Therefore, we explore different approaches to prepare diazocine derivatives. Since the nomenclature is not unambiguous and, hence, potentially confusing, we refer to 5,6-dihydrodibenzo[c,g][1,2]diazocine derivatives as 2,2’-ethylene-bridged azobenzenes (EBABs). Results and

S-Fluorenylmethyl protection of the cysteine side chain upon N^α-Fmoc deprotection

• Johannes W. Wehner and
• Thisbe K. Lindhorst

Beilstein J. Org. Chem. 2012, 8, 2149–2155, doi:10.3762/bjoc.8.242

• relative to internal TMS (1H: δ 0.00 ppm) or were calibrated relative to solvent peaks of CHCl3 (13C: δ 77.0 ppm), MeOH (1H: δ 3.31 ppm; 13C: δ 49.0 ppm), or H2O (δ 4.65 ppm). For peak assignment, atoms were numbered according to conventions for carbohydrate and amino-acid nomenclature. The abbreviation

The chemistry of bisallenes

• Henning Hopf and
• Georgios Markopoulos

Beilstein J. Org. Chem. 2012, 8, 1936–1998, doi:10.3762/bjoc.8.225

• can vary from alkyl and aryl to any type of functional group. For practical reasons we will not use IUPAC-nomenclature for derivatives of 6, but rather regard them as substituted conjugated bisallenes (1,2,4,5-hexatetraenes). In fact, we will see that bisallenes with “real” functional groups

Stereoselective synthesis of trans-fused iridoid lactones and their identification in the parasitoid wasp Alloxysta victrix, Part I: Dihydronepetalactones

• Nicole Zimmermann,
• Robert Hilgraf,
• Lutz Lehmann,
• Daniel Ibarra and
• Wittko Francke

Beilstein J. Org. Chem. 2012, 8, 1246–1255, doi:10.3762/bjoc.8.140

• 2-H which is in line with a trans,trans-configuration (using the nomenclature described above). Starting from 24, the trans,trans-dihydronepetalactone b was synthesized in three subsequent steps (Scheme 3). First, oxidation of the aldehyde group with potassium permanganate in the presence of a

• acetoxymethyl group at C1), 5-CH3 and 2-H, 1’-H and 2-H as well as 5-H and 1’’-CH3 (protons of the methyl group at C1 of the side chain) which is in line with a cis,trans-configuration (using the nomenclature described above). Starting from 26, the synthesis of the cis,trans-dihydronepetalactone c was completed

Synthesis and antiviral activities of spacer-linked 1-thioglucuronide analogues of glycyrrhizin

• Christian Stanetty,
• Andrea Wolkerstorfer,
• Hassan Amer,
• Andreas Hofinger,
• Ulrich Jordis,
• Dirk Claßen-Houben and
• Paul Kosma

Beilstein J. Org. Chem. 2012, 8, 705–711, doi:10.3762/bjoc.8.79

• acid function present in the glucopyranosiduronic residues of the parent compound glycyrrhizin (GL) and in the hemisuccinate moiety of the glycyrrhetinic acid derivative carbenoxolone (CBX) [15] (Figure 1). For the sake of clarity, the nomenclature and numbering for the triterpene system as used

Liquid-crystalline nanoparticles: Hybrid design and mesophase structures

• Gareth L. Nealon,
• Romain Greget,
• Cristina Dominguez,
• Zsuzsanna T. Nagy,
• Daniel Guillon,
• Jean-Louis Gallani and
• Bertrand Donnio

Beilstein J. Org. Chem. 2012, 8, 349–370, doi:10.3762/bjoc.8.39

• ., UV–vis). At this point, it is worth making a note of the nomenclature used in this review. Ligand families are assigned a unique number, followed, where necessary, by numerals indicating the length of any alkyl chains appended to the molecule, which can be cross-referenced with the ligand charts

• the nanoparticle, then nomenclature of the form "Au@Cx/1" is used when necessary. Nanoparticles coated by rodlike proto-mesogenic ligands: End-on attachment The most common and perhaps the most obvious method for inducing LC phases in NP hybrids is to introduce a suitably functionalised LC ligand onto

Fifty years of oxacalix[3]arenes: A review

• Kevin Cottet,
• Paula M. Marcos and
• Peter J. Cragg

Beilstein J. Org. Chem. 2012, 8, 201–226, doi:10.3762/bjoc.8.22

• -tert-butyldihomooxacalix[4]arene (2) [5]. “Dihomo” implies two additional atoms in the bridge and “oxa” that one of them is oxygen. The remainder of the calixarene nomenclature denotes any substituents attached to the phenolic oxygens, known as the “lower rim”, and substituents found in the para

Reciprocal polyhedra and the Euler relationship: cage hydrocarbons, C_nH_n and closo-boranes [B_xH_x]²⁻

• Michael J. McGlinchey and
• Henning Hopf

Beilstein J. Org. Chem. 2011, 7, 222–233, doi:10.3762/bjoc.7.30

• approach might provide access to D2d [44.54]octahedrane 12. (We note that a simplified nomenclature has been proposed in which the number of 3, 4 or 5-membered rings is indicated by a superscript; thus cubane is [46]hexahedrane and pentaprismane is [45.52]heptahedrane [35]). Nonahedrane, C14H14, 13 It has

En route to photoaffinity labeling of the bacterial lectin FimH

• Thisbe K. Lindhorst,
• Michaela Märten,
• Andreas Fuchs and
• Stefan D. Knight

Beilstein J. Org. Chem. 2010, 6, 810–822, doi:10.3762/bjoc.6.91

• FimHtr than ligand 13. MS/MS spectra of angiotensin II (a) and of angiotensin II, photo-crosslinked with diazirine 2 (b), recorded on 4700 Proteomics Analyzer mass spectrometer (Applied Biosystems); (c) fragments of angiotensin II and photo-crosslinked angiotensin II according to Biemann’s nomenclature

Chiral amplification in a cyanobiphenyl nematic liquid crystal doped with helicene-like derivatives

• Alberta Ferrarini,
• Silvia Pieraccini,
• Stefano Masiero and
• Gian Piero Spada

Beilstein J. Org. Chem. 2009, 5, No. 50, doi:10.3762/bjoc.5.50

• the P/M stereochemical descriptors of chirality axes, planes, or helices according to IUPAC nomenclature [48], we use here pseudo-P and pseudo-M to indicate the handedness of the twist between the two (aromatic) planes (for example, a biphenyl, irrespective of the presence of the substituents, is

Mitomycins syntheses: a recent update

• Jean-Christophe Andrez

Beilstein J. Org. Chem. 2009, 5, No. 33, doi:10.3762/bjoc.5.33

• . Discussion 1. Mitomycin isolation and nomenclature Mitomycins are natural products isolated from extracts of genus Streptomyces, a filamentous gram-positive soil bacterium that produces a wide array of biologically active compounds, including over two-thirds of the commercially important natural-product

• to K) in nature are presented in Scheme 2. Since many synthetic attempts did not succeed in providing mitomycins per se but only close relatives of these molecules, a special nomenclature has been elaborated for these compounds: structures of type 15, which do not contain an aziridine ring, but bear