Abdel-Bary, Hamed M.’s team published research in Mansoura Science Bulletin, A: Chemistry in 24 | CAS: 10543-42-7

Mansoura Science Bulletin, A: Chemistry 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, COA of Formula: C9H5ClO4S.

Abdel-Bary, Hamed M. published the artcileReactions with coumarin: synthesis and reactions of coumarinsulfonamides, COA of Formula: C9H5ClO4S, the publication is Mansoura Science Bulletin, A: Chemistry (1997), 24(1), 161-170, database is CAplus.

Coumarin-6-sulfonyl chloride was amidated with different secondary amines to give coumarin-6-sulfonamides. The latter with hydrazine under controlled conditions effected ring-opening of the lactone ring to afford the corresponding o-hydroxycinnamoyl hydrazides. Hydrazones were obtained by condensation of the latter with aldehydes. Some reactions of the hydrazones or hydrazides were examined

Mansoura Science Bulletin, A: Chemistry 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, COA of Formula: C9H5ClO4S.

Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics