• The products are used in the synthesis of oxindoles; see, e.g.: J. Heterocycl. Chem., 28, 1525 (1991).
•
In the presence of chlorine or t-butyl hypochlorite, substituted anilines give ortho-substituted derivatives via a base-promoted Sommelet-Hauser type rearrangement of an intermediate azasulfonium salt: J. Am. Chem. Soc., 96, 5512 (1974):

• Under photochemical conditions, alkenes are converted to the homologated saturated ethyl esters: Tetrahedron Lett., 38, 7829 (1997).