Zobrazeno 1 - 10
of 72
pro vyhledávání: '"phenyltrimethylammonium tribromide"'
Publikováno v:
Israel Journal of Chemistry. 61:327-331
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::693baaa4cb329f00976fce55207556fa
https://doi.org/10.1002/ijch.202000082
https://doi.org/10.1002/ijch.202000082
Autor:
Mariangela S. Azevedo, Ana Paula L. Alves, Glaucia B. C. Alves, Jari N. Cardoso, Rosângela S. C. Lopes, Cláudio C. Lopes
Publikováno v:
Química Nova, Vol 29, Iss 6, Pp 1259-1265 (2006)
alpha-Bromoacetophenones are important in organic synthesis. They have been widely used as precursors of several natural products. Several methods of bromination aiming at their synthesis have been described, however they furnish a mixture of startin
Externí odkaz:
https://doaj.org/article/180917db468147f0bafa7da02f67f8b4
Akademický článek
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Publikováno v:
Chinese Journal of Catalysis. 31:1103-1106
An efficient procedure for the trimethylsilylation of alcohols and phenols is presented. The combination of 1,1,1,3,3,3-hexamethyldisilazane and a catalytic amount of phenyltrimethylammonium tribromide (PhMe 3 N + Br 3 − ) was found to be effective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::260a2ebb1ef38860943ae7266859e12b
https://doi.org/10.1016/s1872-2067(10)60107-6
https://doi.org/10.1016/s1872-2067(10)60107-6
Publikováno v:
Tetrahedron: Asymmetry. 19:1947-1953
Several chiral BINADCo(III)X (BINAD = Bis(1,1′-2-hydroxy-2′-alkoxy-3-naphthylidene)-1,2-cyclohexanediamine, X = OAc, CF3CO2, CCl3CO2, OTs, p-NO2PhCO2) complexes were synthesized and used to catalyze the asymmetric cycloaddition of carbon dioxide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11b07eeee615f02f725d9313a69ae0b3
https://doi.org/10.1016/j.tetasy.2008.08.001
https://doi.org/10.1016/j.tetasy.2008.08.001
Publikováno v:
Catalysis Communications. 8:1630-1634
The coupling reaction of CO2 and epoxides can be carried out in the absence of solvent under mild conditions by using novel and recycled catalysts of SalenRu(II)(PPh3)2/PTAT or SalenRu(III)X(PPh3)/PTAT (X = Cl−, OAc−, ClO 4 - , NO 3 - ).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0515f85517d6f818201f29ea904a56f
https://doi.org/10.1016/j.catcom.2006.12.027
https://doi.org/10.1016/j.catcom.2006.12.027
Autor:
Shinsei Sayama
Publikováno v:
Synthetic Communications. 37:3067-3075
2‐Alkoxy‐1,3,4‐triphenylfurans were oxidized to 3‐alkoxy‐2,4,5‐triphenyl‐ 2‐butene‐1,4‐diones with 2,3‐dichloro‐5,6‐dicyano‐1,4‐benzoquinone (DDQ) in t‐BuOH. In contrast, various 3‐alkoxy‐2,4,5‐triphenylfurans we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62fb4c1b5d3ec1713eaa2b6721175d54
https://doi.org/10.1080/00397910701543036
https://doi.org/10.1080/00397910701543036
Publikováno v:
Tetrahedron. 63:4983-4989
Substituted 2-thiobenzamidomethylindole derivatives ( 14a – e ) were prepared by the reaction of 2-aminomethylindole ( 9 ) with substituted benzoyl chlorides, followed by sulfurization using Lawesson's reagent. Alternatively, these thioamides were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6318da0819dbb4b8b502de0ddde4bab
https://doi.org/10.1016/j.tet.2007.03.132
https://doi.org/10.1016/j.tet.2007.03.132
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 261:262-266
Novel and high efficient catalysts of metal porphyrin (M(TPP)X, M = Co, Fe, Ru, Mn; X = Cl−, Br−, OAc−, OTs−, Cl3CCO2−)/phenyltrimethylammonium tribromide (PTAT) were developed to catalyze the coupling reaction of carbon dioxide and epoxide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ea9c7e18db380b0765a4c869723e996
https://doi.org/10.1016/j.molcata.2006.06.011
https://doi.org/10.1016/j.molcata.2006.06.011
Autor:
Shinsei Sayama
Publikováno v:
Tetrahedron Letters. 47:4001-4005
trans -Stilbene oxide was oxidatively converted to 2-phenyl-1,3-dioxanes with phenyltrimethylammonium tribromide in the presence of various 1,3-diols and a catalytic amount of SbBr 3 in DMSO at room temperature. Aromatic 1,2-diol, such as hydrobenzoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c0ce693c8e69c5df4176dc634b01d91
https://doi.org/10.1016/j.tetlet.2006.04.005
https://doi.org/10.1016/j.tetlet.2006.04.005