Czerney, Peter published the artcileHeterocyclic substituted coumarins from β-chloropropeniminium salts, Application of Morpholine-4-carbothioamide, the publication is Journal fuer Praktische Chemie (Leipzig) (1982), 324(2), 255-66, database is CAplus.
The chloropropeniminium salts I (X = N+Me2 ClO4–; R = H, 6-Br, 7-OH, 7-OMe, 7-NMe2, 7-pyrrolidino, 8-OMe, 7-NEt2, R1 = H; RR1 = 5,6-CH:CHCH:CH, 7,8-CH:CHCH:CH) and the aldehydes I (X = O) were prepared by treating 3-acetylcoumarins with DMF-POCl3 in the presence of HClO4 or H2O, resp. I are versatile synthetic intermediates giving I (X = CR2CN, R2 = cyano, CO2Et, 2-benzimidazolyl, 4-O2NC6H4) which were converted to the aminobutadienes. I were also cyclized to pyrylium, thiopyrylium, pyrazolyl, and thiazinyl derivatives
Journal fuer Praktische Chemie (Leipzig) published new progress about 14294-10-1. 14294-10-1 belongs to amides-buliding-blocks, auxiliary class Morpholine,Thiourea,Amine,Amide, name is Morpholine-4-carbothioamide, and the molecular formula is C5H10N2OS, Application of Morpholine-4-carbothioamide.
Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics