Kirpichenok, M. A. published the artcileSynthesis of 4-chloro-7-(dialkylamino)coumarins, Related Products of alcohols-buliding-blocks, the publication is Khimiya Geterotsiklicheskikh Soedinenii (1990), 830-5, database is CAplus.
The title coumarins I (R = Et, R2N = piperidino, morpholino, R1 = H, Et, cyclohexyl, benzyl) and II were prepared in 15-42% yields by heating aminophenols III or benzoquinolizinol IV with R1CH(CO2H)2 in excess POCl3. Treating I (R = Et, R1 = H) with NaOEt, Bu2NH, and N2H4.H2O gave 45, 63, and 17% coumarins V (R2 = OEt, Bu2N, NHNH2).
Khimiya Geterotsiklicheskikh Soedinenii published new progress about 27292-49-5. 27292-49-5 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Benzene,Phenol, name is 3-Morpholinophenol, and the molecular formula is C10H13NO2, Related Products of alcohols-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts