Chang, Yu-Che published the artcileReI-Catalyzed highly regio- and stereoselective C-H addition to terminal and internal alkynes, Name: 5-Methyl-2-(p-tolyl)pyridine, the publication is Organic Chemistry Frontiers (2019), 6(4), 432-436, database is CAplus.
An effective ortho C-H functionalization of arylpyridines e.g., I and detachable N-pyrimidyl indoles II (R = H, CH3, C(O)CH3) by terminal and internal alkynes R1CCR2 (R1 = H, C6H5, CH3(CH2)2, C6H5CC; R2 = 4-CH3C6H4, (CH2)5OH, cyclohexyl, etc.) using a Re(I) catalyst providing an efficient access to various E-selective alkenylation products e.g., III were developed. The catalytic reaction is compatible with various aliphatic alkynes, aromatic terminal alkynes and internal alkynes, and structurally different nitrogen heterocycles. Deuterium-labeling experiments indicate that significant deuterium scrambling occurs with the directing groups and acetylenic sp C-H bonds before the migratory insertion.
Organic Chemistry Frontiers published new progress about 85237-71-4. 85237-71-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Benzene, name is 5-Methyl-2-(p-tolyl)pyridine, and the molecular formula is C13H13N, Name: 5-Methyl-2-(p-tolyl)pyridine.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem