38045-28-2Relevant academic research and scientific papers
Barbier–Negishi Coupling of Secondary Alkyl Bromides with Aryl and Alkenyl Triflates and Nonaflates
Zhang, Ke-Feng,Christoffel, Fadri,Baudoin, Olivier
, p. 1982 - 1986 (2018)
A mild and practical Barbier–Negishi coupling of secondary alkyl bromides with aryl and alkenyl triflates and nonaflates has been developed. This challenging reaction was enabled by the use of a very bulky imidazole-based phosphine ligand, which resulted in good yields as well as good chemo- and site selectivities for a broad range of substrates at room temperature and under non-aqueous conditions. This reaction was extended to primary alkyl bromides by using an analogous pyrazole-based ligand.
Synthesis of 2,6-dialkoxylphenyllanthanoid complexes and their polymerization catalysis
Ihara, Eiji,Adachi, Yoshifumi,Yasuda, Hajime,Hashimoto, Hiroshi,Kanehisa, Nobuko,Kai, Yasushi
, p. 147 - 157 (2007/10/03)
The 1:1-2:1 reaction of [2,6-(iPrO)2C6H3]Li with anhydrous SmCl3 in THF gave [2,6-(iPrO)2C6H3]3 Sm 1 exclusively, while the 3:1 reaction gave [2,6-(iPrO)2C6H3]4SmLi 2 as major product, which crystallizes in the monoclinic space group C2/c(No. 15) with a=47.52(1) A, b=11.680(9) A, c=18.862(9) A, β=112.19(3)°, V=9694(8) A3, Z=8, R=0.077 and Rw=0.074. In a similar manner, [2,6-(iPrO)2C6H3]3La was obtained by reacting with LaCl3(THF)2. The 2:1 reaction of [2,6-(iPrO)2C6H3]Li with YbCl3 gave [2,6-(iPrO)2C6H3]2YbCl, which produces [2,6-(iPrO)2C6H3] 2Yb[CH(SiMe3)2]2Li 4 by reaction with (SiMe3)2CHLi. Polymerizations of ε-caprolactone and alkyl isocyanates were examined using the resulting complexes.
