123729-63-5Relevant academic research and scientific papers
Platinum-catalyzed cross-couplings of organoboronic acids with aryl iodides
Oh, Chang Ho,Lim, Young Mook,You, Choong Ho
, p. 4645 - 4648 (2007/10/03)
Tetrakis(triphenylphosphine)platinum in DMF was utilized as a mild catalyst for cross coupling reactions of organoboronic acids with aryl iodides. The present reactions exhibited excellent group-selectivity where couplings of organoboronic acids 2a-e with 4-bromo-1-iodobenzene (4) give 4-arylbromobenzenes 5a-b and 4-alkenylbromobenzenes 5c-e in excellent yields.
Cross-coupling reaction of pentacoordinate alkenylsilicates with organic halides and triflates catalyzed by a palladium complex
Hojo, Makoto,Murakami, Chikara,Aihara, Hidenori,Komori, Ei-ichi,Kohra, Shinya,et al.
, p. 499 - 508 (2007/10/02)
Isolated pentacoordinate alkoxy-substituted alkenylsilicates, are readily prepared by mixing alkenyltrialkoxysilane, catechol and triethylamine at room temperature.Cross-coupling reactions of these alkenylsilicates with organic halides or triflates are catalyzed by a palladium complex and proceed very smoothly and cleanly to give the corresponding alkenes.The cross-coupling reactions could be also attained by a one pot operation without isolation of pentacoordinate organosilicates.The mechanism of this cross-coupling reaction is also described here. alkoxy-substituted alkenylsilicate / pentacoordinate silicate / cross-coupling / palladium catalyst / aryl halide / aryl triflate / styrene derivative / 1,3-diene
PENTACOORDINATE ORGANOSILICON COMPOUNDS IN ORGANIC SYNTHESIS: CROSS-COUPLING OF ALKENYLSILICONATES WITH ORGANIC HALIDES AND TRIFLATES CATALYZED BY PALLADIUM COMPLEX
Hosomi, Akira,Kohra, Shinya,Tominaga, Yoshinori
, p. 4622 - 4625 (2007/10/02)
Pentacoordinate triethylammonium bis(catecholato)alkenylsiliconates, readily prepared from alkenyltrialkoxysilane, catechol, and triethylamine react with aryl iodides, vinylic iodides and aryl triflates catalyzed by palladium complex to give the corresponding cross-coupled products in a stereospecific mode.KEYWORDS - pentcoordiate organosilicon compound; cross-coupling; palladium catayst; organic halide, C(sp2) halide; aryltriflate; stereoselective reaction; triethylammonium bis(catecholato)alkenylsiliconate
