Ismail, Imam published the artcileReactions with coumarin. V., SDS of cas: 10543-42-7, the publication is Afinidad (2000), 57(487), 217-221, database is CAplus.
Several coumarin-6-sulfonamides (I; R = H, Me; substituent attached ortho, meta, or para) were prepared by reaction of coumarin-6-sulfonyl chloride with different aromatic amino compounds Imidazole derivatives were formed by reaction of I (R = Me) with ethylenediamine. Reaction of I (R = Me) with hydrazine hydrate afforded acid hydrazides. An oxadiazole was synthesized by reaction of a hydrazide with BzCl to give a diacylhydrazine, which cyclized to the oxadiazole derivative by heating with POCl3. A thiadiazole derivative was synthesized by reaction of a hydrazide with Ph isothiocyanate, followed by treatment with POCl3. Reaction of I (R = Me) with excess hydrazine hydrate (1:5 mol) proceeded with α-pyrone ring fission to give the corresponding cinnamoyl hydrazide derivatives Condensation of one of these with furfural gave the hydrazone, which cyclized to the oxadiazole on treatment with acetic anhydride.
Afinidad published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H5ClO4S, SDS of cas: 10543-42-7.
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