Reference

Action of Grignard reagents on halogenated phthalimides

Action of Grignard reagents on halogenated phthalimides. El-Sharief, A.Several substances are used for example 86-90-8 and 82104-05-0 which are their cas registry numbers. M. S.; Eid, F. A. (Fac. Sci., Al-Azhar Univ., Egypt). Egypt. J. Chem., 25(5), 463-70 (English) 1982. CODEN: EGJCA3. ISSN: 0367-0422. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) 3-Benzalphthalimidines I (R = H, 4-Me, R1 = 6-Br, 7-Cl; R = 2-Me, 2-OMe, 4-Cl, R1 6-Br) were obtained by interaction of PhCH2MgCl with phthalimides, then dehydration of the resulting 3-benzyl-3-hydroxyphthalimidines. Interaction of PhMgBr and EtMgI with bromophthalimides is also discussed. .

Bis(3,4-dicarboxyphenyl) ether

Bis(3,4-dicarboxyphenyl) ether. Kobayashi, Yutaka (Japan). Jpn. Kokai Tokkyo Koho JP 61205232 A2 11 Sep 1986 Showa, 4 pp. (Japan) CODEN: JKXXAF. CLASS: ICM: C07C065-21. ICS: C07C051-265; C07C051-353. APPLICATION: JP 85-46916 8 Mar 1985.Some commonly used reagents like 86-90-8 and 7717-76-2 are used in this experiment. DOCUMENT TYPE: Patent CA Section: 25 (Benzene, Its Derivatives, and Condensed Benzenoid Compounds) Section cross-reference(s): 35 The title ether (I) is prepd. by, e.g., etherification of 4-bromophthalic acid at >100°. I is useful in prepg. polyimides (no data). Thus, heating a mixt. of 4-bromophthalic anhydride 297, 50% aq. KOH 89, and Cu 0.5 g at >100°, cooling to room temp., and neutralizing with 35% HCl gave 417 g I. Alternatively, I was prepd. by etherification of 2,3-Me2C6H3OH, followed by oxidn. of the resultant (2,3-Me2C6H3)2O. .