Detail of "61-70-1"

Reference

Merocyanine isomers of spiro[indolino-indolopyrans]: 1H and 13C NMR and x-ray crystal structure study

Merocyanine isomers of spiro[indolino-indolopyrans]: 1H and 13C NMR and x-ray crystal structure study. Raic, Silvana; Vorkapic-Furac, Jasna; Hergold-Brundic, Antonija; Nagl, Ante; Mintas, Mladen; Mannschreck, Albrecht (Fac. Chem. Eng. Technol., Univ. Zagreb, Zagreb 10000, Croatia). Croatica Chemica Acta, 69(3), 987-996 (English) 1996 Croatian Chemical Society. CODEN: CCACAA. ISSN: 0011-1643. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) Section cross-reference(s): 75 The synthesis of stable merocyanine isomers [i.e. 61-70-1 is the cas registry number of certain chemical which is used as reagents here., (trimethylindolylideneethylidenes)] I (R = H, Cl) was described. The structure of I (R = H) was deduced on the basis of their 1H and 13C NMR spectra. Geometrical data from X-ray structure anal. showed that indolo and indolino rings in I (R = H) were coplanar with the central diene bridge. The bond length shortening of the central single bond and the heterocyclic moieties indicated an electron delocalization over the whole mol. I did not isomerize to the corresponding spiro compds. .

Reactions of organic anions

Part LXXIX. Aromatic nucleophilic substitution in chloronitrobenzenes by carbanions derived from N-substituted oxindoles.In this article, certain chemicals are used. One of their cas registry numbers is 61-70-1 Makosza, Mieczyslaw; Wojciechowski, Krzysztof; Jawdosiuk, Mikolaj (Inst. Org. Chem. Technol., Polytech. Univ., Warsaw, Pol.). Pol. J. Chem., 52(6), 1173-8 (English) 1978. CODEN: PJCHDQ. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Nucleophilic substitution reactions of chloronitrobenzenes by carbanions derived from N-methyloxindoles (I; R = Me, H) gave II [same R; R1 = C6H5-nR2n(NO2); R2 = OMe, Cl]. Carbanions derived from the methylene group had a stronger tendency to substitute the ortho Cl atom than carbanions derived from the methine group. .