bluuebunny/crossref_metadata_2025_split huggingface dataset:
Three bacteriorhodopsins with ring‐didemethylated 6‐s‐locked chromophores and their properties
Authors: Groesbeek M. , van Galen A. J. J. , Ippel J. H. , Berden J. A. , Lugtenburg J. 
Published: September 2010

AbstractThree novel, 6‐s‐locked rigidified retinals, racemic all‐E 1,5‐didemethyl‐8,16‐methanoretinal, all‐E 1,1‐didemethyl‐8,18‐methanoretinal and all‐E 8a, 18‐didehydro‐1, 1‐didemethyl‐8, 18‐ methanoretinal were prepared in good yield in high purity on a 100‐mg scale. For the preparation of the key intermediate in the synthesis of 1,5‐didemethyl‐8,16‐methanoretinal, reductive cyanation of an unsaturated cyanohydrin to the corresponding conjugated nitrile was accomplished using triethylsilane and trifluoroacetic acid. The three locked retinals interact with bacterioopsin to form bacteriorhodopsin with about the same rate as the native chromophore. This work proves that steric interaction of the 1,1‐dimethyl group in the chromophore is an important factor in binding to bacterioopsin.
Binaphthyl metallomacrocycles for complexation of neutral molecules
Authors: Reichwein Arjen M. , Verboom Willem , Reinhoudt David N. 
Published: September 2010

AbstractBinaphthyl salophen crown ethers 1 and 2, containing an immobilized electrophilic uranyl cation, were synthesized by cyclization of dialdehyde 10 with 1,2‐benzenediamine (14) or cis‐1,2‐cyclohexanediamine (15), respectively, in the presence of Ba2+ as a template ion and subsequent transmetallation with UO22+. Solid complexes of urea and 1 and 2 were isolated. Molecular‐mechanics calculations show that the geometry of 1 and 2 is suitable for the introduction of functional groups close to the cavity of the metallomacrocycles.
Dipole moments can be used to determine the conformation of calix[4]arenes
Authors: de Mendoza Javier , Prados Pilar , Campillo Nuria , Nieto Pedro M. , Sáchez Concha , Fayet Jean‐Pierre , Vertut Marie Claire , Jaime Carlos , Elguero José 
Published: September 2010

AbstractExperimental dipole moments for nine calix[4]arenes of known conformation are reported. An additive model, based on MNDO calculations, has been used to discuss these values, as well as three reported other dipole moments. It appears that a combination of calculated dipole moments of the aromatic fragments and experimental values can be used to determine the preferred conformation of calix[4]arenes in solution.
Alkylation of the SCS linkage. Towards lipophilic mono‐ and ditopic heavy‐metal receptors containing trithiane building blocks. Molecular structure of cis‐2,4,6‐tribenzyl‐1,3,5‐trithiane
Authors: Edema Jilles J. H. , Hoogenraad Marcel , Schoonbeek Franck S. , Kellogg Richard M. , Kooijman Huub , Spek Anthony L. 
Published: September 2010

AbstractReaction of 1,3,5‐trithiane with BuLi in THF at ‐ 50°C, followed by reaction with an equivalent amount of alkyl halide [n‐hexyl (a), benzyl (b), n‐dodecyl (c)] affords the corresponding lipophilic alkyl trithianes in moderate to good yields (25‐75%). Reactions with xylylene dibromides (ortho, meta, para) proceeded analogously to afford potentially ditopic ligands in reasonable overall yields (30‐50%). Alkylation of 1,3,5‐trithiane with excess alkyl halide results in the stereoselective formation of all‐cis di‐ or trisubstituted trithianes.Investigation of the complexation behavior of these alkylated trithianes with Ag+ was done by means of conductometric titrations of AgO3SCF3 in MeCN and THF. The molecular structure of 2,4,6‐tribenzyl‐1,3,5‐trithiane (4b) has been determined by X‐ray crystallography. Crystal data for 4b: trigonal, space group R‐3 with a = b = 13.2287(7), c = 20.9177(2) Å, Z = 6, R = 0.030 (Rw = 0.034) for 1564 reflections.
Preparation and catalytic hydrogenolysis of some ω‐halogenoalkyl β‐D‐fructopyranosides; a convenient route to simple alkyl β‐D‐fructopyranosides
Authors: Raaijmakers Harry W. C. , Eveleens Susan M. , Arnouts Esther G. , Zwanenburg Binne , Chittenden Gordon J. F. 
Published: September 2010

AbstractThe acid‐catalysed reactions of D‐fructose, sucrose and inulin with ω‐halogenoalkyl alcohols yield the corresponding β‐D‐fructopyranosides. Catalytic hydrogenolysis of these glycosides provides a simple route to some crystalline alkyl β‐D‐fructopyranosides of potential biological interest.
4‐Alkoxy‐3′‐(alkylthio)‐3,4′‐diquinolinyl sulfides and 4‐alkoxy‐3‐(alkylthio) quinolines
Authors: Maślankiewicz Andrzej , Boryczka Stanistaw 
Published: September 2010

AbstractThe reactions of thioquinanthrene (1) with sodium alkoxides derived from 23 alcohols followed by S‐alkylation gave the title 4‐alkoxy‐3′‐(alkylthio)‐3,4′‐diquinolinyl sulfides 3 (18.5–91.5%) and, in some cases, 1,4‐dihydro‐4‐oxo‐3′‐(alkylthio)‐3,4′‐diquinolinyl sulfides 4a (up to 31.5%). The effect of the solvent applied, counter‐cation used and type of the alkyl group of alkoxide ions was then studied by means of competitive reactions. Effective transformation of 4‐alkoxy‐3′‐(alkylthio)‐3,4′‐diquinolinyl sulfides 3 into some 4 alkoxy‐ and 4‐(alkylthio)‐3‐(alkylthio)quinolines (5,6) and a one‐pot preparation of 4‐alkoxy‐3‐(alkylthio)quinolines 5 starting from thioquinanthrene (1) and sodium alkoxides were also presented.
Selective lipase‐catalyzed 6‐O‐acylation of alkyl α‐D‐glucopyranosides using functionalized ethyl esters
Authors: de Goede A. T. J. W. , Benckhuijsen W. , van Rantwijk F. , Maat L. , van Bekkum H. 
Published: September 2010

AbstractAlkyl α‐D‐glucopyranosides were selectively converted into their 6‐O‐acyl esters by lipase‐catalyzed transesterification with ethyl acrylate or ethyl 4‐chlorobutanoate. Comparison of six lipase preparations showed large differences in activity and selectivity. The addition of zeolite CaA for selective adsorption of ethanol and water, exerted profound effects on conversion and regioselectivity of the transesterification. A quantitative conversion with high selectivity was achieved using lipases from C. antarctica in the presence of zeolite CaA.
A note on the solid‐phase synthesis of oligosaccharides by the Danishefski approach
Authors: Timmers C. M. , van der Marel G. A. , van Boom J. H. 
Published: September 2010

AbstractThe ZnCl2‐mediated glycosidation of an α‐1,2‐epoxide, prepared by epoxidation of a glycal with 3,3‐dimethyldioxirane, with an incoming glycal acceptor is not a priori, as advocated by Danishefski et al, a stereospecific process.
Synthesis and characterization of rigid bidentate nitrogen ligands and some examples of coordination to divalent palladium. X‐ray crystal structures of bis (p‐tolylimino) acenaphthene and methylchloro [bis(o,o′‐diisopropylphenyl‐imino) acenaphthene] palladium (II)
Authors: van Asselt Rob , Elsevier Cornelis J. , Smeets Wilberth J. J. , Spek Anthony L. , Benedix Roland 
Published: September 2010

AbstractThe synthesis and characterization of the rigid bidentate nitrogen ligands bis‐(phenylimino)camphane (Ph‐BIC) and a series of bis(arylimino)acenaphthenes (Ar‐BIAN) is described. These ligands were synthesized by the reaction of camphorquinone or acenaphthenequinone with the corresponding (substituted) aniline in the presence of ZnCl2 or NiBr2, followed by removal of the metal salt in a subsequent step. NDDO calculations on p Tol‐BIAN showed that the electronic properties of this ligand are comparable to the open‐chain analogue Ph‐DAB (DAB = 1,4‐diaza‐1,3‐butadiene). The aromatic group on the imine N atom of Ar‐BIAN ligands is orientated out of the bis(imino)acenaphthene plane, leading to the formation of syn and anti isomers for the ortho‐substituted derivatives o‐MeC6H4‐BIAN and o‐i PrC6H4‐BIAN. In solution one isomer is observed for these ligands, but upon coordination to a Pd(Me)Cl fragment both syn and anti forms are present, as two isomers are formed. Furthermore, the attempted synthesis of bis(isopropylimino)cyclohexane is described, but it was found that a tautomeric imine‐enamine compound is formed which coordinates to palladium(II) in a monodentate fashion, which could not be converted to a chelating ligand. The structures of p Tol‐BIAN and Pd(Me)Cl(o,o′‐i Pr2C6H3‐BIAN) in the solid state were determined by X‐ray diffraction. p Tol‐BIAN is monoclinic, space group C2, a = 20.021(2), b = 8.7703(10), c = 5.5664(10) Å, β = 103.37(1)°, Z = 2, final R = 0.040 for 963 reflections with I > 2.5σ(I). Pd(Me)Cl(o,o′‐i Pr2C6H3‐BIAN) is orthorhombic, space group Pbca, a = 11.440(2), b = 21.250(3), c = 27.087(2) Å, Z = 8, final R = 0.043 for 2433 reflections with I > 2.0σ(I >).
Hybrid molecular assemblies in combinations of a synthetic peptide lipid with macrocyclic cyclophanes
Authors: Murakami Yukito , Hayashida Osamu , Nagai Yasuyuki 
Published: September 2010

AbstractHybrid molecular assemblies were prepared as combinations of a synthetic lipid, involving an L‐alanine residue interposed between an anionic head group and a hydrophobic double‐chain segment, with macrocyclic hosts, cage‐type cyclophanes having a rigid molecular framework and peptide cyclophanes bearing four flexible branches. Each host was completely incorporated into a relatively polar domain close to the vesicular surface, as confirmed by ultrasensitive differential‐scanning calorimetry and dynamic‐light‐scattering measurements as well as by gel‐filtration chromatography and electronic‐absorption spectroscopy. Perturbation effects of the hosts on the membrane structure were characterized on the basis of steady‐state fluorescence polarization, evaluated using a fluorescent probe, 1‐[4‐(trimethylammonio)phenyl]‐6‐phenyl‐1,3,5‐hexatriene iodide, and thermodynamic parameters associated with the phase transition between gel and liquid‐crystalline states. The cage‐type cyclophanes caused a disturbance of the orderly bilayer lipid membrane in the liquid‐crystalline phase due to their rigid conformational framework, while the peptide cyclophanes generated little effect on the lipid fluidity. The hybrid molecular assembly formed with the lipid and the cage‐type host exercised effective molecular recognition toward α‐amino acids with an aromatic moiety through hydrophobic, π‐π and chirality‐based interactions; L‐ and D‐tryptophan were strongly incorporated into the host cavities as confirmed by 1H‐NMR spectroscopy. On the other hand, the hybrid assembly showed no capacity to bind aliphatic guests, such as L‐methionine and L‐threonine.
Micellar and lyotropic behavior of three isomeric bola‐amphiphiles with pyridinium groups
Authors: Festag R. , Hessel V. , Lehmann P. , Ringsdorf H. , Wendorff J.H. 
Published: September 2010

AbstractThe micellar and lyotropic phase behavior of three isomeric bola‐amphiphiles 1, 2 and 3 based on para‐, meta‐ and ortho‐phenylene derivatives with hydrophilic pyridinium headgroups was investigated. The micellar behavior was characterized by surface‐tension and conductivity measurements: while the para‐substituted amphiphile 1 and the ortho isomer 3 aggregated to micelles, the meta‐substituted amphiphile 2 exhibited stepwise, but discontinous self‐association. This is explained by the mass‐action and phase‐separation model. The existence of “premicellar” aggregates and the discontinous aggregation of 2 is evidenced in addition by a difference‐spectro‐photometric measurement. The low surface activity and the calculated areas per molecule of 100–200 Å2 at the air‐water interface agree with a loop‐like conformation of all three bola‐amphiphiles 1–3.Lyotropic mesophases were found in the high‐concentration regime only for the para isomer 1, while 2 formed crystalline‐isotropic phases and 3 isotropic phases only. The mesophase of 1 was characterized by X‐ray measurements as lamellar.The addition of 1‐hexanol as a co‐surfactant led to the induction of a lyotropic mesophase for 2. The role of the cosurfactant consists of filling the wedge between the two hydrophobic chains, thus stabilizing the aggregates.
Dimethylsulfonio‐ and sulfo‐de‐hydrogenation on reaction of azuleno[2,1,8‐ija]azulene (isopyrene) with the dimethyl sulfoxide‐sulfur trioxide complex as reagent
Authors: Cerfontain Hans , Koeberg‐Telder Ankie , Vogel Emanuel , Wilmes Oswald 
Published: September 2010

AbstractReaction of azuleno[2,1,8‐ija]azulene (isopyrene, 1) with SO3 in the presence of an excess of DMSO leads mainly to mono‐“dimethylsulfonio‐de‐hydrogenation” with formation of 5‐(dimethylsulfonio)isopyrene, the amount of initial sulfonation being relatively small. Subsequently, the 5‐(dimethylsulfonio)isopyrene is relatively slowly sulfo‐de‐hydrogenated to yield 5‐(dimethylsulfonio)isopyrene‐10‐sulfonic acid.
Synthesis of LL‐di‐myo‐inositol‐1,1′‐phosphate: A novel inositol phosphate from Pyrococcus woesei
Authors: van Leeuwen S. H. , van der Marel G. A. , van Boom J. H. , Hensel R. 
Published: September 2010

AbstractSynthesis of LL, DD and LD stereoisomers of di‐myo‐inositol‐1,1′‐phosphate (DIP) could be realised by phosphitylation of properly protected L‐ or D‐myo‐inositol derivatives. It was also established that naturally occurring (+)‐DIP has the LL‐configuration.
Synthesis and Properties of 1,2‐Dimethylene‐3,5‐cycloheptadiene
Authors: Oda Mitsunori , Kuroda Shigeyasu , Shimao Ichiro , Morita Noboru , Asao Toyonobu 
Published: September 2010

AbstractThe regioselective synthesis of dimethyl 1,3,5‐cyloheptatriene‐1,2‐dicarboxylate (4) was achieved by a ring expansion method, starting from dimethyl 1,3‐cyclohexadiene‐2,3‐dicarboxylate (5). The title compound 3 was obtained as an air‐sensitive oil by zinc‐copper reduction of 1,2‐bis(bromomethyl)cyclohepta‐1,3,5‐triene (10) to which the diester 4 was transformed.
Chiral induction in lanthanide(III)‐alkoxide‐catalysed Meerwein‐Ponndorf‐Verley reductions
Authors: Huskens Jurriaan , de Graauw Cornells F. , Peters Joop A. , van Bekkum Herman 
Published: September 2010

AbstractThe reduction of acetophenone using a chiral catalyst, prepared in situ by adding a chiral dihydroxy compound to a solution of a lanthanide(III) alkoxide, was studied. The highest enantiomeric excess (ee) (32%) was observed with La(O′Bu)3 as the catalyst and 1,2:5,6‐di‐O‐isopropylidene‐D‐mannitol as the chiral ligand. With pinacolone as the substrate, an ee of 22% was obtained.
1,3‐Dilithiobenzene and 1,4‐dilithiobenzene
Authors: Fossatelli M. , Den Besten R. , Verkruijsse H.D. , Brandsma L. 
Published: September 2010

AbstractUsing the method of iodine‐lithium exchange, 1,3‐ and 1,4‐dilithiobenzene have been generated in solution and isolated in a dry state for the first time. The dilithium compounds are not formed from the corresponding dibromobenzenes.
Observing individual generations in poly(propyleneimine) dendrimers with natural abundance 15N‐NMR spectroscopy
Authors: van Genderen Marcel H. P. , Baars Maurice W. P. L. , van Hest Jan C. M. , Meijer E.W. , de Brabander‐van den Berg Ellen M. M. 
Published: September 2010

AbstractNatural abundance 15N‐NMR spectra of poly(propyleneimine) dendrimers are presented to show the usefulness of the technique in characterizing these highly branched and well‐defined macromolecules. Inverse‐gated decoupled measurements show the number and intensities of signals that reflect the generations in the dendrimers.
t‐Butyl alcohol‐assisted fission of the P‐P bonds in red phosphorus with lithium in liquid ammonia: A convenient preparative method for dialkylphosphanes
Authors: Arbuzova S.N. , Gusarova N.K. , Trofimov B.A. , Brandsma L. 
Published: September 2010

AbstractEssentially complete fission of the P‐P bonds in red phosphorus can be effected by adding one equivalent of t‐butylalcohol to a mixture of red P and lithium in liquid ammonia. The reaction has been applied to synthesize some dialkylphosphanes.
Synthesis of thiophenes from allenyl sulfones involving α,β‐unsaturated sulfines as intermediates
Authors: van der Linden Johannes B. , van Asten Peter F. T. M. , Braverman Samuel , Zwanenburg Binne 
Published: September 2010

AbstractThe synthesis of thiophenes starting from allenyl sulfones, via intermediate formation of α,β‐unsaturated sulfines, is described. The allenyl sulfones were synthesized by a [2,3]‐sigmatropic rearrangement of appropriately substituted prop‐2‐ynyl sulfinates. Treatment of the allenyl sulfones with n‐butyllithium and chlorotrimethylsilane gave α‐silylated allenyl sulfones in almost quantitative yield, which, on heteroconjugate addition of organolithium reagents, gave the desired α‐silyl carbanions. These reacted with sulfur dioxide to give the α,β‐unsaturated sulfines, which underwent in‐situ rearrangement to 2‐sulfonylthiophenes. The yield of the thiophenes depends on the organolithium reagents used. The use of exocyclic allenyl sulfones was more troublesome, and a thiophene was obtained for only one example.
Dual‐wavelength spectrophotometric determinations of copper and its composition of the complex with eriochrome blue black R
Authors: Gao Hong‐Wen 
Published: September 2010

AbstractCopper has been determined by a modified dual‐wavelength spectrophotometric (DWS) method, using the reaction of CuII with eriochrome blue black R (EBBR) at pH 12, which is sensitive and selective in the presence of both pentadecyltrimethylammonium bromide (PTMAB) and ascorbic acid. The modified DWS can completely eliminate the effect of excess EBBR in its CuII solution and give the real absorbance of the produced chelate of CuII with EBBR, with increased analytical sensitivity and decreased error. The composition of the complex of CuII with EBBR can be determined easily and accuratively. Beer's law is obeyed over the concentration range of 0‐1.60 mg Cu per 1 and the true molar absorbance of chelate Cu(EBBR)2 at 550 nm has been computed as 1.80 · 104 · mol−1 · cm−1. The detection limit of Cu is 0.04 mg. This method has been applied for the determination of trace amounts of copper in waste water with satisfactory results.
Enantioselective oxidation by non‐heme iron mono‐oxygenases from Pseudomonas
Authors: Wubbolts Marcel G. , Noordman Reinoud , van Beilen Jan B. , Witholt Bernard 
Published: September 2010

AbstractXylene oxygenase (XO), an enzyme system from Pseudomonas putida mt‐2, selectively oxidizes the methyl side group of toluene‐derived compounds. The enzyme is related to Pseudomonas oleovorans mono‐oxygenase (POM), which has been used to produce optically active epoxides from various alkenes at high enantiomeric excess.We have introduced XO into Escherichia coli and produced variously substituted benzyl alcohols from toluene derivatives and optically active styrene epoxides from styrene, m‐ and p‐chlorostyrene and m‐ and p‐methylstyrene using this biocatalyst. The products of oxidation of styrene and styrene derivatives had enantiomeric excesses (ees) ranging from 37% to over 98%.Similarly, Pseudomonas putida was engineered such that the hydroxylation of compounds by POM could be investigated independent of subsequent product degradation. The biocatalyst accepted a wide range of substrates and oxidized both linear and branched alkanes, and cyclic alkanes as well as alkylbenzenes to the corresponding alcohols.In this review we describe the catalytic potential of engineered biocatalysts based on both XO and POM and discuss the structural and functional similarities of these non‐heme iron mono‐oxygenases.
Catalytic enantioselective alkylation of aldehydes using chiral hydrogen phosphoramidates and hydrogen phosphinamides and their thio analogs
Authors: Soai Kenso , Ohno Yoshiaki , Inoue Yukikazu , Tsuruoka Toshihiro , Hirose Yuji 
Published: September 2010

AbstractChiral (enantiomerically pure) hydrogen thiophosphoramidates and hydrogen phosphoramidates and their phosphinamide analogs derived from norephedrine and other chiral (enantiomerically pure) amino alcohols catalyze the enantioselective addition of dialkylzines to aldehydes. The presence of titanium tetraisopropoxide increases the enantioselectivity, providing enantiomerically enriched secondary alcohols with up to 98% ee. The enantioselectivities of thiophosphoramidates and thiophosphinamides are higher than those of the oxygen analogs. The phosphoramidates and thiophosphoramidates, without the hydroxyl group, also catalyze the addition of dialkylzinc to aldehydes in the absence of Ti(OiPr)4.
Asymmetric synthesis of solenopsins A, B and C
Authors: Solladié Guy , Huser Nathalie 
Published: September 2010

AbstractSolenopsins A, B and C have been synthesized in enantiomerically pure forms from the corresponding anti‐1,5‐diols which have been obtained from glutaric anhydride by an asymmetric synthesis induced by chiral sulfoxides.
Enhanced enantiocontrol in catalytic metal carbene transformations with dirhodium (II) tetrakis[methyl 2‐oxooxazolidin‐4(S)‐carboxylate], Rh2(4S‐MEOX)4
Authors: Doyle Michael P. , Dyatkin Alexey B. , Protopopova Marina N. , Yang Chien I. , Miertschin Charla S. , Winchester William R. , Simonsen Stanley H. , Lynch Vincent , Ghosh Ratna 
Published: September 2010

AbstractThe synthesis, spectral characteristics, and X‐ray structures for dirhodium(II) tetrakis[methyl 2‐oxooxazolidin‐4(S)‐carboxylate], Rh2(4S‐MEOX)4, and the related dirhodium(II) tetrakis[methyl 5(R)‐methyl‐2‐oxooxazolidin‐4(S)‐carboxylate], Rh2(4S‐THREOX)4, are reported. Comparison is made between these 2‐oxooxazolidin‐ligated dirhodium(II) catalysts for metal carbene transformations and those with comparable 2‐oxopyrrolidine ligands, especially dirhodium(II) tetrakis[methyl 2‐oxopyrrolidine‐5(S)‐carboxylate], Rh2(5S‐MEPY)4. Structure‐selectivity comparisons reveal that Rh2(4S‐MEOX)4 provides higher enantiocontrol and, in some cases, higher diastereocontrol than Rh2(5S‐MEPY)4 in intramolecular carbon‐hydrogen insertion reactions of sterically demanding diazoacetates and diazoacetamides and is the catalyst of choice for highly enantioselective diazodecomposition of adamantyl diazoacetates and N‐(tert)butyldiazoacetamides. The structurally analogous Rh2(4S‐THREOX)4 is nearly identical with Rh2(4S‐ MEOX)4 in its overall effect on selectivity. The net advantage of Rh2(4S‐MEOX)4 lies in its wider openness for metal carbene transformations.
Asymmetric synthesis of anti‐α‐alkyl‐β‐amino carboxamides
Authors: Davies Stephen G. , Edwards Alison J. , Walters Iain A. S. 
Published: September 2010

AbstractThe alkylation reactions of enolates derived from the highly diastereoselective conjugate additions of lithium (R)‐N‐benzyl‐N‐α‐methylbenzylamide (R)‐1 to N, N‐dimethyl crotonamide 2 and N, N‐dimethyl cinnamide 3 have been investigated. The alkylations of enolates derived from 3 are shown to afford anti‐α‐alkyl‐β‐amino carboxamides with excellent stereocontrol: the stereochemistry is assigned with the aid of a single crystal X‐ray structure of (2R,3S,αR)‐N, N‐dimethyl 2‐benzyl‐3‐phenyl‐3‐(N‐benzyl‐N‐α‐methylbenzylamino)propanamide (2R,3S,αR)‐10. As a result of the difficulty encountered in hydrolysing these hindered β‐amino amides such as 10, an alternative procedure is developed involving conjugate addition‐alkylations with α,β‐unsaturated N‐acyloxazolidin‐2‐ones as substrates, giving selectively alkylated products which are susceptible to reductive cleavage.
The synthesis and properties of some mesogenic 3–O‐alkyl derivatives of D‐glucitol and D‐mannitol
Authors: Raaijmakers Harry W. C. , Arnouts Ester G. , Zwanenburg Binne , Chittenden Gordon J. F. , van Doren Henk A. 
Published: September 2010

AbstractThe synthesis of some 3‐O‐long‐chain alkyl ethers of D‐glucitol, D‐mannitol, and mixtures thereof, from readily available di‐O‐isopropylidene derivatives of D‐glucose and D‐fructose is described. Some physical characteristics including critical‐micellar‐concentration (CMC) values, Krafft temperatures, thermotropic and lyotropic liquid‐crystal behaviour are also reported.