Beilstein J. Org. Chem.2018,14, 243–252, doi:10.3762/bjoc.14.16
those of others.
Keywords: 5-(heterocyclic)thiophenes; one-pot sequential synthesis; sulfur ylide; tetrasubstitutedthiophene; Introduction
Since the discovery of stable sulfonium ylides 1 in 1930 [1] and the pioneering work of several research groups during the 1960s (2 and 3) [2][3][4][5][6][7][8][9
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Graphical Abstract
Figure 1:
The selected examples of sulfur(IV) and sulfur(VI) ylides 1 [1], 2 [5-7], 3 [6,7,9], 4 [11,12], 5 [33,34], 6 [35-38].