… calcium carbide allowed us to prepare pyridines bearing two 13C-labels. Combination of both
approaches led to D2,13C2-doubly labeled pyridines … -labeled pyridines were synthesized …

… calcium carbide as a solid acetylene analogue fits this trend perfectly. By replacing gaseous
acetylene with calcium carbide… synthesis of 2,3,6-trisubstituted pyridines 70 (Scheme 28) [62]…

… been reported that calcium carbide can be directly … calcium carbide in organic synthesis.
Therefore, it is still of great significance to further develop the applications of calcium carbide …

… Utilization of 2-ethynyl pyridine as dipolarophile was successful with the reaction method,
affording the [3 + 2] cycloaddition adduct in 62% yield and 5.3:1 regioselectivity. (27) This …

… but also calcium carbides 12 using … and pyridine were also used as catalysts. Reaction of
maleonitrile 3a and triazole 4a with acetone in the presence of either triethylamine or pyridine …

… 38 and various di- and trisubstituted nitroolefins 37 in the … acetylide generated in situ from
calcium carbide were also found to … corresponding hydrazones 99 to calcium carbide 132 as a …

… the presence of a slight excess of pyridine, a method which had … As in the previous case the
trisubstituted methyl chloride could … placing calcium carbide in the thimble in order to remove …

… -a]pyridines 63 [38]… calcium carbide as an inexpensive alkyne source and water as a promoter
(Scheme 6a). In these reactions, ethynyl calcium hydroxide resulting from calcium carbide …

… Chemoselective Suzuki–Miyaura reactions on 3,5- and 4,6-dibromo-2-tosyloxypyridines
were studied for the preparation of trisubstituted pyridines (17ASC107). A unique …

… pyridine is not following the same mechanism as that of acetyl chloride. In acetyl chloride, the
nitrogen of the pyridine … di-, or tri-substituted carbon increases to the extent that the pyridine …