110225-73-5Relevant academic research and scientific papers
Preparation and reactions of 2-pyridyltellurium derivatives
Kondo, Yoshinori,Shilai, Manabu,Uchiyama, Masanobu,Sakamoto, Takao
, p. 1781 - 1782 (1996)
Pyridyltellurium derivatives have been prepared from the reaction of halopyridines with lithium butanetellurolate and the tellurium-metal exchange of pyridyltellurium derivatives has been investigated using butyllithium and dilithium dimethylcyanocuprate.
A mild catalytic system for radical conjugate addition of nitrogen heterocycles
Aycock,Wang,Jui
, p. 3121 - 3125 (2017/04/04)
The direct addition of pyridine and diazine units to electron-poor alkenes has been achieved via a redox radical mechanism that is enabled by limiting the effective concentration of the hydrogen-atom source. The described method is tolerant of acidic functional groups and is generally applicable to the union of a wide range of Michael acceptors and 6-membered heterocyclic halides.
Preparation and reactions of pyridinyl tellurides
Shilai,Uchiyama,Kondo,Sakamoto
, p. 481 - 484 (2007/10/03)
Tellurium-metal exchange reaction of n-butyl 2-pyridinyl telluride derivatives with n-butyllithium or dilithium dimethylcyanocuprate proceeded smoothly to give the corresponding 2-pyridinylmetal derivatives, which are important intermediates for functionalization of pyridines.
2-Thienyl as Auxiliary Group in Mixed Lithium Diorganocuprate
Lindstedt, Eva-Lotte,Nilsson, Martin
, p. 466 - 469 (2007/10/02)
2-Thienylcopper (ThCu) gives mixed lithium organothienylcuprate reagents (LiRThCu) with organolithium compounds (R = methyl, butyl, phenyl and 2-pyridyl) in ether.These cuprates react with enones or enoates adding the group R, 1,4 to the substrates, 2-thienylcopper being regenerated.The isolated yields of conjugate addition are substantial (40-89percent) and comparable to those obtained with LiR2Cu in corresponding addition.Since a mixed organothienylcuprates are rather stable at 0 deg C, and sometimes even at room temperature, the 2-thienyl group is an useful auxiliary in mixed lithium organocuprates for conjugate addition.Lithium bis(2-thienyl)cuprate, on the other hand, gives 1,2- as well as 1,4-addition of the 2-thienyl group to enones and to methyl crotonate.
