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- W2949209432 abstract "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 (48–58%). Similarly, sodium 2-[N-benzyl-N-(prop-2′-ynyl)]aminobenzoate 1b on reaction with aryl iodides under palladium–copper catalysis afforded the disubstituted alkynes 20–22. Compounds 11–19 on cyclisation with cuprous iodide in the presence of triethylamine in acetonitrile yielded the 3-arylidene-2,3-dihydro-5H-1,4-benzodioxepin-5-ones 23–31 in 61–83% yields. Similarly, compounds 20–22 on cyclisation gave 3-arylidene-1,2,3,5-tetrahydro-4,1-benzoxazepin-5-ones 32–34." @default.
- W2949209432 created "2019-06-27" @default.
- W2949209432 creator A5008167208 @default.
- W2949209432 creator A5019686075 @default.
- W2949209432 date "2010-06-07" @default.
- W2949209432 modified "2023-09-25" @default.
- W2949209432 title "ChemInform Abstract: A Highly Regio- and Stereoselective Synthesis of (Z)-3-Arylidene-2,3-dihydro-5H-1,4-benzodioxepin-5-ones and (Z)-3-Arylidene-1,2,3,5-tetrahydro-4,1-benzoxazepin-5-ones Through Palladium-Copper Catalysis." @default.
- W2949209432 cites W2109655093 @default.
- W2949209432 doi "https://doi.org/10.1002/chin.200029130" @default.
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