Mm. Krayushkin et al., 5-METHYL-2-PROPARGYLTHIO-3-THIOPHENECARBALDEHYDE OXIME IN THE SYNTHESIS OF NEW S,N-CONTAINING FUSED HETEROCYCLES, Russian chemical bulletin, 42(3), 1993, pp. 488-490
5-Methyl-2-propargylthio-3-thiophenecarbaldehyde oxime is a convenient
synthon for the synthesis of fused tricyclic systems containing annel
ated thiophene, thiopyran (dihydrothiopyran), and isoxazoline (isoxazo
le) rings.