Search results for "Acetylacetone"

Antibakterielle Wirkstoffe, 10. Mitt. 2-(Methylthioanilino)pyrimidine

1985

Attempted preparation of trisphenol-II

1998

Abstract Condensation of 4,4-bis-(4-methoxyphenyl)-2-methyl-2-pentanol with phenol, in the presence of hydrogen chloride, gives 1,3,3-trimethyl-1-(4-methoxyphenyl)-5-methoxyindan and tris-(4-methoxyphenyl)-ethane instead of expected 2,2,4-tris-(4-methoxyphenyl)-4-methylpentane (trisphenol-II). tris-(4-Hydroxyphenyl)-ethane was obtained, together with bisphenol-A, by condensation of phenol with acetylacetone.

ChemInform Abstract: Attempted Preparation of Trisphenol-II.

2010

Abstract Condensation of 4,4-bis-(4-methoxyphenyl)-2-methyl-2-pentanol with phenol, in the presence of hydrogen chloride, gives 1,3,3-trimethyl-1-(4-methoxyphenyl)-5-methoxyindan and tris-(4-methoxyphenyl)-ethane instead of expected 2,2,4-tris-(4-methoxyphenyl)-4-methylpentane (trisphenol-II). tris-(4-Hydroxyphenyl)-ethane was obtained, together with bisphenol-A, by condensation of phenol with acetylacetone.

Examples of UV–Vis profiles use as tool for evidence of the metallophthalocyanines transformation

2017

Abstract The UV–Vis spectra for a set of MPcs (Mmetal, Pc = phthalocyanine ligand), i.e.: In(III)PcI (1), Hf(IV)PcI2Pht (Pht = phthalonitrile) (2), Sn(II)Pc (3), Sn(IV)PcI2 (4), and Ge(IV)PcI2 (5) have been examined in two solvents, O-donative acetylacetone, and non-coordinative benzene. The UV–Vis spectra in Hacac solution of 1,2 and 4,5 shows that the axially ligated iodine atoms are replaced by (acac)− anions of the solvent, whereas in 3 the oxygen donors of the solvent causing the auto-oxidation of Sn(II) to Sn(IV) ions and as a result the Sn(II)Pc is transformed into the Sn(IV)Pc(acac)2. The chloride complexes of the 1–5 compounds are formed at Hacac solution after acidification by hyd…