86355-37-5Relevant articles and documents
Action of Grignard Reagents on Phthalides, Phthalimides and Related Compounds: Part II - Interaction of Tetrachloro-3-(p-N-arylsulphonamidobenzal)phthalides with Grignard Reagents, Hydrazine Hydrate and Amines
El-Sharief, A. M. Sh.,El-Maghraby, A. A.,El-Said, A. S.
, p. 87 - 90 (2007/10/02)
4,5,6,7-Tetrachloro-3-(p-N-arylsulphonamidobenzal)phthalides (II) prepared by direct interaction of p-sulfphonamidophenylacetic acids (I) with tetrachlorophthalic anhydride react with Grignard reagents to furnish two isolable products, the o-diketones (II