references

Multivariate statistical and GIS-based approach to identify source of anthropogenic impacts on metallic elements in sediments from the mid Guangdong…

January 27, 2012

Publication year: 2012 Source: Environmental Pollution, Volume 163, April 2012, Pages 248-255 Yang-Guang Gu, Zhao-Hui Wang, Song-Hui Lu, Shi-Jun Jiang, De-Hai Mu, …

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Communicative and psychological dimensions of the KiddyCAT

January 25, 2012

Publication year: 2012 Source: Journal of Communication Disorders, Available online 24 January 2012 Chagit E. Clark, Edward G. Conture, Carl B. Frankel, Tedra A. Walden PurposeThe purpose of the present study was to investigate the underlying constructs of the Communication Attitude Test for Preschool and Kindergarten Children Who Stutter (KiddyCAT;), especially those related to awareness of stuttering and negative speech-associated attitudes.MethodParticipants were 114 preschool-age children who stutter (CWS;n = 52; 15 females) and children who do not stutter (CWNS;n = 62; 31 females).

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Synthetic studies on (+)-bucidarasin C: two diastereoselective transannular reactions producingcis-decaline derivatives that show reversal selectivity

January 24, 2012

Publication year: 2012 Source: Tetrahedron Letters, Available online 24 January 2012 Akinobu Nakahara, Misaki Kanbe, Masahisa Nakada This manuscript describes studies on the construction of thecis-decaline core of (+)-bucidarasin C.

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Copper catalyzedipso-nitration of iodoarenes, bromoarenes and heterocyclic haloarenes under ligand-free conditions

January 22, 2012

Publication year: 2012 Source: Tetrahedron Letters, Available online 21 January 2012 P.J. Amal Joseph, S. Priyadarshini, M. Lakshmi Kantam, H. Maheswaran A catalytic protocol for the conversion of haloarenes into the corresponding nitroarenes is presented using copper salts under ligand-free conditions. The method was effectively utilized for theipso-nitration of a broad variety of haloarenes that includes iodoarenes, bromoarenes and heterocyclic haloarenes.

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Synthetic studies related to MPC1001: formation of a model epidithiodiketopiperazine

January 22, 2012

Publication year: 2012 Source: Tetrahedron Letters, Available online 21 January 2012 Lihong Wang, D.L.J. Clive A tricyclic epidithiodiketopiperazine was prepared having structural features related to the antitumor antibiotic MPC1001. The method is based on the use of the sulfenylating agentp-MeC6H4S(O2)SCH2OSiMe2Bu-tto introduce two protected sulfur atoms in a sequential and stereocontrolled manner

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A versatile approach to the regioselective synthesis of diverse (-)-epicatechin- β -D-glucuronides

January 22, 2012

Publication year: 2012 Source: Tetrahedron Letters, Available online 20 January 2012 Eric S. Mull, Michael VanZandt, Adam Golebiowski, Paul Beckett, Pradeep K. Sharma, … A versatile new approach is reported for the total synthesis of five glucuronide metabolites of epicatechin, using selective protection/deprotection techniques

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Synthesis of 1-aryl-substituted-4-chloroimidazo[1,2-a]quinoxalines catalyzed by PdCl2in water

January 22, 2012

Publication year: 2012 Source: Tetrahedron Letters, Available online 20 January 2012 Mohammad Bakherad, Ali Keivanloo, Shahrzad Samangooei The reaction of 2-chloro-3-propargylaminoquinoxaline with various aryl iodides and bromides catalyzed by Pd–Cu in the presence of potassium carbonate as the base in water leads to the one-pot formation of 1-aryl-substituted-4-chloroimidazo[1,2-a]quinoxalines in moderate-to-high yields. The reaction of 2-chloro-3-propargylaminoquinoxaline with various aryl iodides and bromides catalyzed by Pd–Cu in the presence of potassium carbonate as the base in water leads to the one-pot formation of 1-aryl-substituted-4-chloroimidazo[1,2- a ]quinoxalines in moderate-to-high yields.

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An efficient synthesis of the 4’-epimer of 2-fluoronoraristeromycin

January 22, 2012

Publication year: 2012 Source: Tetrahedron Letters, Available online 20 January 2012 Quachel Bazile, Tesfaye Serbessa, Junyan Zhong The 4’-epimer of 2-fluoronoraristeromycin was synthesized by employing bis-t-butoxycarbonyl (Boc) protected 2-fluoroadenine as a superior substrate for the Mitsunobu reaction with the appropriate cyclopentenol.

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The challenge of choosing environmental indicators of anthropogenic impacts in estuaries

January 21, 2012

Publication year: 2012 Source: Environmental Pollution, Volume 163, April 2012, Pages 207-217 Katherine A. Dafforn, Stuart L. Simpson, Brendan P. Kelaher, Graeme F. Clark, Valeriya Komyakova, … Ecological assessments over large spatial scales require that anthropogenic impacts be distinguishable above natural variation, and that monitoring tools are implemented to maximise impact detection and minimise cost.

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Role of non-enzymatic antioxidants on the bivalves’ adaptation to environmental mercury: Organ-specificities and age effect inScrobicularia…

January 21, 2012

Publication year: 2012 Source: Environmental Pollution, Volume 163, April 2012, Pages 218-225 I. Ahmad, I. Mohmood, J.P. Coelho, M. Pacheco, M.A. Santos, …

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