Journal of Heterocyclic Chemistry p. 760 - 767 (2014)
Update date:2022-08-03
Topics:
Rama Suresh
Prasad Tulichala
Kotikalapudi, Ramesh
Kumara Swamy
A phosphine [P(n-Bu)3]-catalyzed reaction for the synthesis of phosphono-chromans from allenylphosphonates and salicyl N-thiophosphinyl imines has been described and compared with reactions for phosphorus-free allenes. The products are (β,γ)-cyclized and are obtained in good yields (57-83%). A key product is characterized by X-ray crystallography.
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