A highly regio- And stereoselective synthesis of (Z)-3-arylidene-2,3-dihydro-5H-1,4-benzodioxepin-5-ones and (Z)-3-arylidene1,2,3,5-tetrahydro-4,1-benzoxazepin-5-ones through palladium-copper catalysis
Sodium 2-(prop-2′-ynyloxy)benzoate 1a reacted with the aryl iodides 2-10 in the presence of bis(triphenylphosphine)palladium(II) chloride, cuprous iodide and triethylamine in CH3CN-DMF to yield the disubstituted alkynes 11-19 in good yields (48
Chaudhuri, Gopeswar,Kundu, Nitya G.
p. 775 - 779
(2007/10/03)
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