1: With toluene-4-sulfonic acid in acetonitrile Heating; 2: With sodium methylate in methanol Further stages. Title compound not separated from byproducts.;
参考文献
Jenkinson, Sarah F.; Jones, Nigel A.; Moussa, Adel; Stewart, Alistair J.; Heinz, Thomas; Fleet, George W.J.
Tetrahedron Letters, 2007 , vol. 48, # 25 p. 4441 - 4444
