Electrolytic methoxylation of 3,4-bis(hydroxymethyl) furan and synthesis of 4,5-bis-(hydroxymethyl) pyridazine

3,4-Bis(hydroxymethyl)furan was electrolytically methoxylated during intense cooling. 4,5-Bis(hydroxymethyl)pyridazine was obtained by reaction of the methoxylation product — 2,5-dimethoxy-3,4-bis (hydroxymethyl)-2,5-dihydrofuran — with hydrazine hydrate.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1306–1307, October, 1970.     

The addition of hydrogen chloride to alk-1-enes in the presence of dicyclohexyl peroxydicarbonate,iron pentacarbonyl,and ferric chloride

Russian Chemical Bulletin -     

Synthesen von Mannich-Basen von Hydroxy-indolen. 3. Mitteilung über synthetische Indol-Verbindungen [1]

The reactivity of hydroxy-indoles under the conditions of the Mannich-reaction has been studied. The electrophilic side-chain enters in each case in a position ortho to the phenolic group. 4-Hydroxy-indole is substituted in the 5-, 5-hydroxy-indole in the 4-, 6-hydroxy-indole in the 7-, and 7-hydroxy-indole probably in the 6-position. The structures of the Mannich bases from 4-, 5- and 6-hydroxy-indole have been confirmed by comparison of the hydroxy-methyl-indoles obtained by reductive desamination with hydroxy-methyl-indoles prepared by unambiguous total synthesis.     

Reaktionen von o-Chinolacetaten mit Diazoalkanen, 4. Mitt.: Über die Einwirkung von Diazomethan auf o-Chinole

Zusammenfassung o-Chinole lagern je nach ihrer Konstitution ein oder zwei Mole Diazomethan an. Die Struktur dieser Additionsverbindungen wurde durch chemische und spektroskopische Untersuchungen geklärt.Mit 2 Abbildungen3. Mitt.:G. Spiteller undF. Wessely, Mh. Chem.90, 839 (1959).     

Über die thermische Umlagerung von o-Benzochinolen

Zusammenfassung Durch kurzzeitiges Erhitzen von monomeren o-Benzochinolen oder deren Dimerisationsprodukten in der Gasphase auf 450^o entstehen in guter Ausbeute verschieden substituierte Cyclopentenonverbindungen. Der Mechanismus der Thermoumlagerung ist aber unbekannt, so daß Rückschlüsse auf die Konstitution der dimeren o-Benzochinole unmöglich sind.     

Cholesterol-based hydrogen-bonded liquid crystals

Hydrogen bonding is a powerful tool for assembling molecules and building new liquid crystalline structures. In this study, non-symmetric dimesogens were prepared by intermolecular hydrogen bonding between rationally designed H-bond donor (3-cholesteryloxycarbonylpentanoic acid) and acceptor (4-(pyridine-4-ylmethyleneimino)phenyl 4-alkoxybenzoate) moieties. Their liquid crystalline properties were investigated by differential scanning calorimetry, polarized optical microscopy and X-ray diffraction. Cholesteric and smectic phases were observed. As for the covalently linked dimesogens, several types of smectic periodicities occur for these H-bonded cholesteryl compounds depending on the molecular parameters.