Kumar, Arvind published the artcileKetene dithioacetals. Part 12. Synthesis and reactions of α-oxoketene dithioacetals derived from heterocyclic ketones, Safety of 2-Cyano-N-ethylacetamide, the publication is Journal of Chemical Research, Synopses (1979), 268-9, database is CAplus.
Ten title dithioacetals I [R2R3 = C(SMe)2](R = H, Me; R1 = H, Me, OMe; X = O, S, NSO2C6H4Me-4; n = 1, 2) were prepared (51-75%) from the corresponding benzopyranones I (R2 = R3 = H) by treatment with CS2 in the presence of NaOCMe3 followed by methylation. I [R = R1 = H, R2R3 = C(SMe)2, X = S, n = 1] (II) reacted with NH2NH2 in EtOH in the presence and absence of morpholine to give 48% benzothiopyranopyrazole III (R = NHNH2) and 87% III (R = SMe), resp. II reacted with H2NC(:NH)NH2 to give 30% benzothiopyranopyrimidine IV (R = OMe) and 9% IV (R = H) and with NCCH2CONHR (R = H, Me, Et) in the presence of NaOCHMe2 to give 76% benzothiopyranopyridone V and 69-74% benzothiopyranonaphthyridinedione VI (R = Me, Et), resp.
Journal of Chemical Research, Synopses published new progress about 15029-36-4. 15029-36-4 belongs to amides-buliding-blocks, auxiliary class Nitrile,Amine,Aliphatic hydrocarbon chain,Amide, name is 2-Cyano-N-ethylacetamide, and the molecular formula is C5H8N2O, Safety of 2-Cyano-N-ethylacetamide.
Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics