《Catalyst-free and solvent-free hydroboration of alkynes》 was written by Jaladi, Ashok Kumar; Choi, Hyeon Seong; An, Duk Keun. Name: 4-Ethynylpyridine And the article was included in New Journal of Chemistry in 2020. The article conveys some information:
The hydroboration of alkynes with pinacolborane (HBpin) under catalyst- and solvent-free conditions was demonstrated. Various alkynes were smoothly converted into alkenyl boronate esters in good to excellent yields at 110°C. The gram-scale hydroboration of alkynes provided the corresponding boronates, which were further utilized for various chem. transformations and coupling reactions. In the experimental materials used by the author, we found 4-Ethynylpyridine(cas: 2510-22-7Name: 4-Ethynylpyridine)
4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. Pyridine is very deactivated towards electrophilic substitution with respect to benzene. For this reason classical formylation, using methods such as the Gattermann or Vilsmeier reactions, are not generally successful. Name: 4-Ethynylpyridine