1. From the editor

   • E. Lukevics

   EditorialNotes Pages: 629 - 629

2. Molecular structure of compounds containing a 2,2′-bithienyl fragment (review)

   • E. Lukevics
   • G. Barbarella
   • O. Pudova

   ReviewPaper Pages: 630 - 662

3. Condensation of 1-carbamoylmethyl-2,3,3-trimethyl-3H-indolium chloride with aromatic aldehydes

   • A. Sackus
   • V. Amankaviciene
   • V. Martynaitis

   OriginalPaper Pages: 663 - 671

4. Tosyiate of ethyl 3-amino-2-phenyliodoniocrotonate: Synthesis, crystal structure, and synthesis of heterocyclic compounds based on it

   • O. Neilands
   • S. V. Belyakov

   OriginalPaper Pages: 672 - 678

5. Synthesis and crystal structure of Schiff bases obtained by condensation of 2-aminopyridines with acrylic aldehydes

   • I. Iovel
   • L. Golomba
   • E. Lukevics

   OriginalPaper Pages: 679 - 685

6. Electronic spectra and structure of methyl derivatives of 4-nitropyridine N-oxide

   • L. Wasylina
   • A. Puszko

   OriginalPaper Pages: 686 - 692

7. Synthesis and properties of 3-cyano-4-(4-cyanophenyl)-1,4-dihydropyridine-2(3H)-thiones

   • A. Krauze
   • G. Duburs

   OriginalPaper Pages: 693 - 697

8. Bromination of aromatic ring of tetrahydro-1,5-benzodiazepin-2-ones

   • B. Puodziunaite
   • R. Janciene
   • L. Kosychova

   OriginalPaper Pages: 698 - 704

9. An approach to fused pyrimidine derivativesvia Schiff bases of aromaticortho-nitrocarbaldehydes. An investigation of substituent effects on the reaction course

   • S. Ostrowski
   • A. M. Wolniewicz

   OriginalPaper Pages: 705 - 713

10. Protolytic equilibrium of certain annelated azoloazines

    • A. P. Volovodenko
    • R. E. Trifonov
    • V. A. Ostrovskii

    OriginalPaper Pages: 714 - 721

11. Ring-ring tautomerism in 1,3-alkanoylhydrazonoximes of acetylacetone

    • A. Yu. Ershov
    • A. V. Dobrodumov

    OriginalPaper Pages: 722 - 727

12. 3,6,6-trimethyl-4-oxo-1-(2-pyridyl)-4,5,6,7-tetrahydroindazole in Schmidt reaction and Beckmann rearrangement conditions for the 4-hydroxyimino derivative

    • L. G. Delyatitskaya
    • M. V. Petrova
    • A. Ya. Strakov

    OriginalPaper Pages: 728 - 732

13. Synthesis of 2,5-bis(2-aminothiazol-5-yl)-3,6-dichloro-1,4-benzoquinones

    • N. G. Batenko
    • R. Valters
    • G. Karlivans

    OriginalPaper Pages: 733 - 737

14. Synthesis and properties of azoles and their derivatives. 45. Regio-and stereoselectivity of the [2+3]-cycloaddition ofE-β-nitrostyrene toZ-C-phenyl-N-arylnitrones

    • A. Baranski

    OriginalPaper Pages: 738 - 743

15. Cephalosporins containing carbonate functions at positions 3 and 7

    • G. Veinberg
    • M. Vorona
    • E. Lukevics

    OriginalPaper Pages: 744 - 750

16. Synthesis of condensed heterocycles containing a pyrimido[5,4-e][1,3]-thiazine fragment

    • A. Brukshtus
    • S. Tumkevicius

    OriginalPaper Pages: 751 - 753

17. Exotic amino acids. 4. Synthesis of methyl esters of some N-heteroamino-methylenemalonic acids

    • D. Zicane
    • I. Ravinya
    • U. Kalejs

    OriginalPaper Pages: 754 - 757