Synthèse et protodésilylation de silanes α-alléniques hétérocycliques
摘要:
Some psi-functional propargylic-bis-trimethylsilanes, easily prepared from propargyltrimethylsilane through classical methods, allow a convenient one-pot synthesis of 2-alkyl-4-trimethylsilyl-3-vinylidenetetrahydropyranes and N-alkyl-4-trimethylsilyl-3-vinylidene-piperidines. These new silanes undergo a protodesilylation reaction leading to conjugated heterocyclic dienes.
Synthèse et protodésilylation de silanes α-alléniques hétérocycliques
摘要:
Some psi-functional propargylic-bis-trimethylsilanes, easily prepared from propargyltrimethylsilane through classical methods, allow a convenient one-pot synthesis of 2-alkyl-4-trimethylsilyl-3-vinylidenetetrahydropyranes and N-alkyl-4-trimethylsilyl-3-vinylidene-piperidines. These new silanes undergo a protodesilylation reaction leading to conjugated heterocyclic dienes.