Mixed-metal ethylenediaminetetraacetates of neodymium and alkaline earths

Conclusions In solution, the complexes M^II(NdA)₂ do not have a polynuclear structure. In the conditions studied, hydroxo polynuclear complexes including EDTA and M^II and Nd³⁺ ions are also not formed. Our results are not inconsistent with the hypothesis that the solid complex Ca(NdA)₂·17H₂O has a polynuclear structure and that the polynuclear character is successively weakened as Ca²⁺ is replaced by Sr²⁺ and Ba²⁺.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1235–1239, June, 1977.     

Stereochemistry of the synthesis of 1,2,3,4-tetrahydrocinnolines from aryldiazenium salts and olefins

It follows from the PMR spectra that the reaction of 1-methyl-, 1-phenyl-, 1-ethyl-,1-phenyl-, and 1,1-diphenyldiazenium salts with cis- and trans-d-styrenes, which leads to the corresponding 3-d-4-phenyl-1,2,3,4-tetrahydrocinnolines, takes place with retention of the configuration in the starting styrenes. It is therefore proposed that this reaction be regarded as a special case of [4⁺_s + 2_s]-cycloaddition.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1658–1661, December, 1977.     

Synthesis of methylamides of O-(2-acetamido-2-desoxy-Β-D-glucopyranosyl)-N-acetylserine and O-(2-acetamido-2-desoxy-Β-D-glucopyranosyl)-N-acetylthreonine

Conclusions The oxazoline method was used to synthesize the methylamides of O-(2-acetamido-2-desoxy--D-glucopyranosyl)-N-acetylserine and O-(2-acetamido-2-desoxy--D-glucopyranosyl)-N-acetylthreonine.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 697–699, March, 1975.     

Synthesis of halogenoazoles

On reaction with halogens, organolithium and organomagnesium derivatives of azoles are converted into halogenoazoles. Halogen derivatives of N-substituted imidazoles, benzimidazoles, and indazoles have been studied.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1109–1111, August, 1973.