552832-63-0Relevant articles and documents
Facile preparation and chemical transformations of spirocyclopropane-annelated heterocycles
De Meijere, Armin,Kuchuk, Ilya D.,Sokolov, Viktor V.,Labahn, Thomas,Rauch, Karsten,Es-Sayed, Mazen,Kraemer, Thomas
, p. 985 - 997 (2007/10/03)
A productive approach has been developed to spirocyclopropane-annelated 1,4-benzoxathiane 17 (85%), 1,4-benzothiazines 20-22 (56-88%) and 1,4-benzoxazines 25, 26 (55-71%), through Michael additions of binucleophilic o-hydroxythiophenol 15, o-aminothiophen