

2020 No.2 (632) pp. 127–242
Table of Contents
Chronicle
CONGRATULATIONS TO THE LAUREATES OF THE STATE PRIZE OF UKRAINE IN THE FIELD OF SCIENCE AND TECHNOLOGY FOR 2019 |
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127 |
Review Articles
THE VERSATILITY OF DABCO: SYNTHETIC APPLICATIONS OF ITS BASIC, NUCLEOPHILIC, AND CATALYTIC PROPERTIES. PART 1. CATALYSIS OF MORITA–BAYLIS–HILLMAN AND KNOEVENAGEL REACTIONS |
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Дмитрий И. Бугаенко, Александр В. Карчава, Марина А. Юровская | 128-144 |

THE VERSATILITY OF DABCO: SYNTHETIC APPLICATIONS OF ITS BASIC, NUCLEOPHILIC, AND CATALYTIC PROPERTIES. PART 2. CATALYSIS OF MICHAEL AND BIGINELLI REACTIONS AND NUCLEOPHILIC ADDITION AT C=X AND C≡X BONDS |
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Дмитрий И. Бугаенко, Александр В. Карчава, Марина А. Юровская | 145-160 |

Heterocycles in Focus
RECENT APPLICATIONS OF (DI)ALKYL MELDRUM'S ACIDS |
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Inese Mieriņa, Elīna Peipiņa | 161-163 |

SYNTHESIS OF PYRROLO[2,1-b]THIAZOLE DERIVATIVES |
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Вячеслав C. Гринёв, Алевтина Ю. Егорова | 164-166 |

SYNTHETIC METHODOLOGIES TOWARD THIAZOLOTHIAZOLES |
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Marium Khan, Munawar A. Munawar | 167-169 |

HETEROCYCLIZATIONS OF α-HETEROATOM-SUBSTITUTED ORGANOBORONATES |
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Oleksandr O. Grygorenko, Yevhen M. Ivon | 170-172 |

Original Papers
SYNTHESIS AND SOME CHEMICAL PROPERTIES OF 2-CYANO-4-PYRONE |
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Дмитрий Л. Обыденнов, Aлександра И. Суслова, Вячеслав Я. Сосновских | 173-179 |

SYNTHESIS OF NOVEL AZIDES AND TRIAZOLES ON THE BASIS OF 1Н-PYRAZOLE-3(5)-CARBOXYLIC ACIDS |
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Александр И. Далингер, Алексей В. Медведько, Александра И. Балалаева, Ирина А. Вацадзе, Игорь Л. Далингер, Сергей З. Вацадзе | 180-191 |

THE SYNTHESIS OF NOVEL HETEROCYCLIC 3-ACETAMIDE DERIVATIVES OF BENZANTHRONE |
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Елена М. Кирилова, Ирена Д. Николаева, Эвита Романовска, Александр И. Пучкин, Сергей В. Беляков | 192-198 |

SYNTHESIS OF BIOLOGICALLY ACTIVE 6-(TOLYLHYDRAZINYLIDENE)PYRAZOLO[1,5-a]PYRIMIDINONES |
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Янина В. Бургарт, Наталья А. Елькина, Евгений В. Щегольков, Ольга П. Красных, Вера В. Маслова, Галина А. Триандафилова, Сергей Ю. Солодников, Галина Ф. Махаева, Ольга Г. Серебрякова, Елена В. Рудакова, Виктор И. Салоутин | 199-207 |

SYNTHESIS OF 2-[2-(HYDROXYIMINO)ALKYL]-1,2-OXAZOL-5(2Н)-ONES |
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Елена Б. Николаенкова, Ирина Ю. Багрянская, Алексей Я. Тихонов | 208-212 |

STRATEGY FOR THE SYNTHESIS OF 2,2-DISUBSTITUTED 8-AZACHROMANONES VIA HORNER–WADSWORTH–EMMONS OLEFINATION |
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Taras V. Omelian, Eugeniy N. Ostapchuk, Alexey V. Dobrydnev, Yehor S. Malets, Volodymyr S. Brovarets, Oleksandr O. Grygorenko | 213-218 |

SYNTHESIS AND SPECTRAL PROPERTIES OF CARBAZOLE-COUMARIN HYBRID DYES |
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Shengling Li, Duanlin Cao, Zhiyong Hu, Zhichun Li, Xianjiao Meng, Xinghua Han, Wenbing Ma | 219-225 |

SYNTHESIS OF NOVEL (2,3-DIHYDRO-1,4-THIASELENIN-2-YL)SULFANYL-SUBSTITUTED PHARMACOPHORIC NITROGEN HETEROCYCLES BASED ON 2-(BROMOMETHYL)-1,3-THIASELENOLE |
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Svetlana V. Amosova, Alexander V. Martynov, Alexander I. Albanov, Vladimir A. Potapov | 226-232 |

Short Communications
1-AMINO-2-NITROGUANIDINE IN REACTIONS WITH α-KETOCARBOXYLIC ACIDS |
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Ольга Ю. Озерова, Татьяна П. Ефимова, Тамара А. Новикова | 233-236 |

PROPYLPHOSPHONIC ANHYDRIDE (T3P®)-MEDIATED THREE-COMPONENT SYNTHESIS OF HEXAHYDRODIBENZO[b,e][1,4]DIAZEPIN-1-ONE DERIVATIVES |
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Viktor Hazai, Tímea Szabó, Balázs Volk, Mátyás Milen | 237-240 |

Anniversaries and dates
IGOR' IOGANOVICH GRANDBERG (1930–2011). TO THE 90TH ANNIVERSARY OF BIRTH |
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241-242 |
Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv