Tetrahedron p. 5277 - 5286 (1991)
Update date:2022-08-03
Topics:
Abarca, Belen
Ballesteros, Rafael
Mojarrad, Fatemeh
Metni, Mohamed R.
Garcia-Granda, Santiago
Perez-Carreno, Enrique
Jones, Gumos
Ylides derived from 2-acylmethyltriazolopyridinium salts (2a) -(2c) react with methyl or ethyl propiolate and with dimethyl acetylenedicarboxylate to give ylides (3a)-(3e), (6) or (7). In some cases 1:2 adducts are formed, shown to be the novel ylides (8a)-(8d); an X-ray diffraction confirms structure (8a).
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Doi:10.1016/S0040-4039(00)92698-4
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(2013)
