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Photoisomerization of cis,cis-1,4-diphenyl-1,3-butadiene in glassy media at 77 K: the bicycle-pedal mechanism
Tuesday, February 28, 2006 - 05:39 PM - 4 years ago - 557 Reads - Chemistry - RSC Chemical Communications 
The cis-trans photoisomerization of cis,cis-1,4-diphenyl-1,3-butadiene in a soft isopentane glass at 77 K gives significant two-bond photoisomerization in contrast to fluid solution and hard ... (Read More)
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First application of supported ionic liquid phase (SILP) catalysis for continuous methanol carbonylation
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 427 Reads - Chemistry - RSC Chemical Communications 
A solid, silica-supported ionic liquid phase rhodium iodide Monsanto-type catalyst system, [BMIM][Rh(CO)2I2]-[BMIM]I-SiO2, exhibits excellent activity and selectivity towards acetyl products in ... (Read More)
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Acyclic diaminocarbenes: simple, versatile ligands for cross-coupling reactions
Thursday, January 19, 2006 - 12:00 AM - 4 years, 1 month ago - 410 Reads - Chemistry - RSC Chemical Communications 
Acyclic diaminocarbenes are shown to be useful, practical ligands for several palladium-catalyzed cross-coupling reactions. Bhartesh Dhudshia, Avinash N. Thadani (Communication from Chem. ... (Read More)
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A mild, copper catalyzed route to conducting polyaniline
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 394 Reads - Chemistry - RSC Chemical Communications 
The aniline dimer has been polymerized cleanly under mild conditions to obtain polyaniline using a copper(ii) scorpionate [MeB(3-(Mes)Pz)3]CuCl as the catalyst and H2O2 as the oxidant. H. V. ... (Read More)
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Conformal coating of nanoscale features of microporous Anodisc[trade mark sign] membranes with zirconium and titanium oxides
Friday, January 13, 2006 - 12:00 AM - 4 years, 1 month ago - 380 Reads - Chemistry - RSC Chemical Communications ![Conformal coating of nanoscale features of microporous Anodisc[trade mark sign] membranes with zirconium and titanium oxides](/modules/tRSSNews/pnimages/rssimgs/rss43cb266aa2d4d.gif "Conformal coating of nanoscale features of microporous Anodisc[trade mark sign] membranes with zirconium and titanium oxides")
We report on a new solution technique known as Polymer Assisted Deposition (PAD) and its ability to conformally coat porous materials with 200 nm openings. Piyush Shukla, Edel M. Minogue, T. ... (Read More)
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MEMS Product Development Engineer; BioScale
Monday, August 06, 2007 - 08:45 AM - 2 years, 7 months ago - 380 Reads - Career - Employment - TinyTechJobs.com Nanotech Jobs
Cambridge, MA USA
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Total synthesis of floresolide B and [capital Delta]6,7-Z-floresolide B
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 378 Reads - Chemistry - RSC Chemical Communications ![Total synthesis of floresolide B and [capital Delta]6,7-Z-floresolide B](/modules/tRSSNews/pnimages/rssimgs/rss43d0fe529ddf6.gif "Total synthesis of floresolide B and [capital Delta]6,7-Z-floresolide B")
The total syntheses of the cytotoxin marine natural product floresolide B (1) and its [capital Delta]6,7-Z isomer (2) have been achieved through an olefin metathesis-based strategy. K. C. ... (Read More)
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Isoindoles and dihydroisoquinolines by gold-catalyzed intramolecular hydroamination of alkynes
Thursday, January 12, 2006 - 12:00 AM - 4 years, 1 month ago - 373 Reads - Chemistry - RSC Chemical Communications 
The combination of the Ugi-four-component reaction with a gold-catalyzed hydroamination gives access to chiral isoindoles and dihydroisoquinolines of high complexity in just two reaction steps. ... (Read More)
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Use of streptomycin for precipitation and detection of proteinase K resistant prion protein (PrPsc) in biological samples
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 372 Reads - Chemistry - RSC Chemical Communications 
The ability of streptomycin to form multimolecular aggregates with pathogenic prion proteins and their recovery by precipitation via a low-speed centrifugation step has been demonstrated. Aly ... (Read More)
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Dual mechanism of zinc-proline catalyzed aldol reactions in water
Thursday, March 02, 2006 - 11:54 AM - 4 years ago - 362 Reads - Chemistry - RSC Chemical Communications 
The aqueous aldolization catalyzed by zinc-proline and secondary amines occurs via an enamine with acetone and via an enolate with dihydroxyacetone, as shown by reductive trapping and Bronsted ... (Read More)
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Advanced functional properties in nanoporous coordination framework materials
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 360 Reads - Chemistry - RSC Chemical Communications 
Coordination framework materials display a rich array of host-guest properties and are notable amongst porous media for their extreme chemical versatility. This article highlights a number of ... (Read More)
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A non-fluorous copper catalyst for the styrene cyclopropanation reaction in a fluorous medium
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 357 Reads - Chemistry - RSC Chemical Communications 
The complex TpBr3Cu(NCMe), containing no fluorine atoms, can be dissolved in the perfluoropolyether FOMBLIN[registered sign] and employed as a catalyst for the styrene cyclopropanation reaction ... (Read More)
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Baker's yeast-mediated enantioselective reduction of substituted fluorenones
Friday, January 13, 2006 - 12:00 AM - 4 years, 1 month ago - 347 Reads - Chemistry - RSC Chemical Communications 
In the presence of DMSO as co-solvent and under vigorous agitation, baker's yeast in water was found to reduce substituted fluorenones to the corresponding fluorenols in good to excellent ... (Read More)
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Palladium-catalyzed addition of alkynes to cyclopropenes
Thursday, January 19, 2006 - 12:00 AM - 4 years, 1 month ago - 346 Reads - Chemistry - RSC Chemical Communications 
Palladium catalyzed addition of alkynes to cyclopropenes occurs in high yield under mild conditions without the need to protect many sensitive functional groups (aldehydes and carboxylic acids). ... (Read More)
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A new stepwise synthesis of a family of propylamines derived from diatom silaffins and their activity in silicification
Friday, February 24, 2006 - 12:44 PM - 4 years ago - 343 Reads - Chemistry - RSC Chemical Communications 
A new method for the stepwise synthesis of propylamines as found in diatoms is presented and their activity in silicic acid condensation is described. Vadim V. Annenkov, Siddharth V. ... (Read More)
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Photooxidation of Co-thiolato complexes in protic and aprotic solvents
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 341 Reads - Chemistry - RSC Chemical Communications 
Protic solvents decrease the susceptibility of the thiolate ligand in Co(iii) thiolato complexes toward attack by singlet oxygen, but greatly increase the conversion of the peroxidic ... (Read More)
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Iron nanoparticles in the coupling of alkyl halides with aryl Grignard reagents
Friday, February 24, 2006 - 12:44 PM - 4 years ago - 341 Reads - Chemistry - RSC Chemical Communications 
Iron nanoparticles, either formed in situ stabilised by 1,6-bis(diphenylphosphino)hexane or polyethylene glycol (PEG), or preformed stabilised by PEG, are a unique class of catalysts for ... (Read More)
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Electrochemical oxidation of catechol in the presence of cyclopentadiene. Investigation of electrochemically induced Diels-Alder reactions
Wednesday, March 08, 2006 - 05:14 AM - 4 years ago - 341 Reads - Chemistry - RSC Chemical Communications 
We describe the synthesis and kinetic evaluation of compounds from [4 + 2] alone and [4 + 2] followed by [2 + 2] cycloaddition reactions of electrochemically generated o-benzoquinone with ... (Read More)
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Balancing flexibility and stress in DNA nanostructures
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 336 Reads - Chemistry - RSC Chemical Communications 
A subtle balance of flexibility and stress is found to be critical for a DNA nanostructure to be a good self-assembly block. Yu He, Chengde Mao (Communication from Chem. Commun.) Yu He, Chem. ... (Read More)
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First zeolite carbon replica with a well resolved X-ray diffraction pattern
Friday, January 20, 2006 - 12:00 AM - 4 years, 1 month ago - 332 Reads - Chemistry - RSC Chemical Communications 
The present study demonstrates that for the nanocasting process with zeolites, a careful choice of the zeolite structure type (EMT) allows the formation of faithful carbon replica exhibiting up ... (Read More)
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