141031-07-4Relevant articles and documents
Synthesis of 5-diphenylphosphinoyl-2,3-dihydropyran-4-ones
Okauchi, Tatsuo,Nagamori, Hironobu,Kouno, Ryouji,Ichikawa, Junji,Minami, Toni
, p. 1393 - 1398 (2007/10/03)
5-Diphenylphosphinoyl-2,3-dihydropyran-4-ones are readily prepared from the corresponding 5-diphenylphosphinoyl-1-buten-3-yne under mild acidic conditions. The phosphorus substituted pyrones are converted to more substituted pyrones via 1,4-addition of co