Abstract Potential formation and reactions of adamantane-1, 3-dicarbenes 1–3 generated under different conditions and from different precursors, such as sodium salt of adamantane- 1, 3-dicarbaldehyde ditosylhydrazone (4a), sodium salt of 1, 3-diacetyladamantane ditosylhydrazone (5a), sodium salt of 1, 3-dibenzoyladamantane ditosylhydrazone (6a), and 1, 3-bis (diazobenzyl) adamantane (7) are reported. Carbene species generated thermally ...