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A number of copoly(arylene ether ketones) containing the phenolfluorene and bisphenol A fragments were synthesized. By the example of these compounds, it was shown for the first time that the effect of reversible electronic switching can exhibit in the copolymer films even if this effect is absent in the corresponding homopolymer films.

Pd complexes have been obtained from linear and cross-linked copolymers ofR,S-, R-, andS-1-(4-vinylphenyl)ethylamine (1) with styrene and divinylbenzene. Reduction of these compounds gave catalysts which were active in the reductive solvolysis of α-acetaminocinnamic acid azlactone (2) and hydrogenation of the solvolysis products α-acetamidocinnamic acid (ACA), its esters, and its 1-phenylethylamide. The catalysts showed no enantioselective properties in the reductive hydrolysis, but were more active than the catalyst obtained in the absence of the polymer (the “monomeric” analog). The use of polymeric catalysts has shown that, in reductive aminolysis, the chiral nucleophile plays the dominant part in determining the stereoselectivity of the reaction, rather than the chiral ligand of the catalytic complex. The polymer matrix stabilizes the low-valent state of the palladium in the complex. In the hydrogenation of ACA and its esters, the catalyst on the cross-linked polymer is much more active than its “monomeric” analog, but showed no enantioselectivity. Hydrogenation of acetamidocinnamic acidR-andS-1-phenylethylamides on a chiral Pd-polymer catalyst occurred with double asymmetric induction.

Quantum chemical calculation by the expanded Huckel method revealed that the mechanism for the insertion of singlet methylene into the C-C1 bond of methyl chloride consists in the electrophilic attack by methylene on the C-Cl bond, with a subsequent synchronous transfer of the chlorine atom to the methyl and the formation of ethyl chloride; here the vacant p-orbital of methylene does not react with the unshared pairs of the chlorine atom.

The interaction of NaM(CO)5 (M=Mn, Re) with (m-H2C2B10H9-9)TlCl2 in THF yields the stable polymetallic chain compounds (m-H2C2B10H9-9)Tl(Cl)M(CO)5. The stability of the compounds obtained is compared to that of the analogous (B-carboranyl)mercury derivatives.

4,7-Diaminopyridazino[4,5-c]furoxan was synthesized by intramolecular cyclization of 3-cyanofuroxan-4-carbamidrazone obtained from 3,4-dicyanofuroxan and hydrazine.