880-36-4Relevant articles and documents
Rational Design of an Iron-Based Catalyst for Suzuki–Miyaura Cross-Couplings Involving Heteroaromatic Boronic Esters and Tertiary Alkyl Electrophiles
Byers, Jeffery A.,Crockett, Michael P.,Li, Bo,Wong, Alexander S.
supporting information, p. 5392 - 5397 (2020/03/04)
Suzuki–Miyaura cross-coupling reactions between a variety of alkyl halides and unactivated aryl boronic esters using a rationally designed iron-based catalyst supported by β-diketiminate ligands are described. High catalyst activity resulted in a broad substrate scope that included tertiary alkyl halides and heteroaromatic boronic esters. Mechanistic experiments revealed that the iron-based catalyst benefited from the propensity for β-diketiminate ligands to support low-coordinate and highly reducing iron amide intermediates, which are very efficient for effecting the transmetalation step required for the Suzuki–Miyaura cross-coupling reaction.
Cross-coupling reaction of alkyl halides with alkyl grignard reagents catalyzed by cp-iron complexes in the presence of 1,3-butadiene
Iwasaki, Takanori,Shimizu, Ryohei,Imanishi, Reiko,Kuniyasu, Hitoshi,Kambe, Nobuaki
supporting information, p. 763 - 766 (2018/05/29)
Iron-catalyzed cross-coupling reaction of alkyl halides with alkyl Grignard reagents by the combined use of cyclopentadienyl ligand and 1,3-butadiene additive is described. The reaction smoothly proceeds at room temperature using unactivated alkyl bromides and fluorides via non-radical mechanism, which is in sharp contrast with hitherto known Fe-catalyzed cross-coupling reactions of alkyl halides.
Boron fluoride complexing bi-pyrrole methylidyne derivative substituted by meso-position alkyl thiophene and 3,5-position electron-donating group and preparation method of derivative
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Paragraph 0070; 0071, (2016/10/08)
The invention discloses a boron fluoride complexing bi-pyrrole methylidyne derivative substituted by meso-position alkyl thiophene and a 3,5-position electron-donating group and a preparation method of the derivative. According to the method, 2-bromothiophene serves as a starting raw material, dipyrrylmethanes substituted by meso-position alkyl thiophene is synthesized through a series of reactions, NBS bromination is conducted, and 3,5-dibromo bi-pyrrolidine is obtained; then, TCQ oxidation and boron trifluoride ether complexing are conducted, a 3,5-boron dibromo fluorine intermediate with the meso-position containing alkyl thiophene is obtained, then the intermediate is utilized to conduct an Suzuki/Stille coupled reaction with a variety of modification groups, the boron fluoride complexing bi-pyrrole methylidyne derivative substituted by a 3,5-position donor unit is obtained, and the structural formula can be found in formula I. The boron fluoride complexing bi-pyrrole methylidyne derivative substituted by meso-position alkyl thiophene and the 3,5-position electron-donating group has good stability and has potential application value in the fields of life science, solar cells, environment, energy and the like.