A cyclization-trapping route to carbocyclic and heterocyclic benzylic sulfones
摘要:
Acetals of 4-arylbutyraldehydes and 3-aryloxy-, 3-arylamino- and 3-arylthiapropionaldehydes react with Na-sulfinates in formic or trifluoroacetic acid to give good yields of the corresponding 4-(sulfonyl) substituted tetralins, teuahydroquinolines, chromans and thiochromans.