1. Synthesis and antitubercular activity of isoniazones of some aldehydes in the furan and thiophene series

   • L. N. Pavlov
   • O. O. Makeeva
   • Ya. L. Gol'dfarb

   Brief Communications Pages: 123 - 124

2. The Schmidt reaction with pyridine carboxylic acids

   • V. L. Zbarskii
   • G. M. Shutov
   • E. Yu. Orlova

   Brief Communications Pages: 124 - 124

3. Synthesis of organosilicon lactones based on vinylacetic acid

   • V. F. Mironov
   • N. S. Fedorov

   Brief Communications Pages: 125 - 127

4. Reaction of pyrazine di-N-oxide with acetic anhydride and benzenesulfonyl chloride

   • A. S. Elina
   • I. S. Musatova

   Letters to the Editor Pages: 127 - 127

5. Introducing a quinoline group into the benzene ring of 1-alkyl-2,3-dihydroindoles

   • A. K. Sheinkman
   • A. N. Kost
   • R. D. Bodnarchuk

   Letters to the Editor Pages: 128 - 128

6. 2,2′-Azobenzimidazoles

   • A. F. Pozharskii
   • E. A. Zvezdina
   • A. M. Simonov

   Letters to the Editor Pages: 128 - 129

7. Reaction of silyl- and boramines with ketene and diketene

   • V. D. Sheludyakov
   • V. P. Kozyukov
   • V. F. Mironov

   Letters to the Editor Pages: 129 - 129

8. Synthesis of organosilicon lactones based on vinylacetic acid

   • V. F. Mironov
   • N. S. Fedorov

   Letters to the Editor Pages: 130 - 131

9. Elementary cell parameters of ome 1-organylsilatranes

   • Ya. Ya. Bleidelis

   Letters to the Editor Pages: 131 - 131