

2020 No.98 (639) pp. 1111–1240
Table of Contents
Review Articles
SYNTHESIS AND CHEMICAL PROPERTIES OF 3-ALKOXYCARBONYLCHROMONES AND 3-ALKOXALYLCHROMONES |
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Вячеслав Я. Сосновских | 1111-1124 |

DIALKYL (2-OXOPROPYL)PHOSPHONATES IN THE SYNTHESIS OF PHOSPHORYLATED HETEROCYCLES |
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Мыкола A. Тупычак, Назарий T. Походыло, Мыкола Д. Обушак | 1125-1129 |

2-YLIDENE-1,3-THIAZOLIDINES AND THEIR NONHYDROGENATED ANALOGS: METHODS OF SYNTHESIS AND CHEMICAL PROPERTIES |
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Мария Б. Литвинчук, Антон В. Бентя, Наталия Ю. Сливка, Михаил В. Вовк | 1130-1145 |

Heterocycles in Focus
APPLICATION OF BF3•Et2O IN THE SYNTHESIS OF CYCLIC ORGANIC PEROXIDES |
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Peter S. Radulov, Ivan A. Yaremenko | 1146-1148 |

N-SUBSTITUTED PYRIDINIUM SALTS AS REAGENTS FOR RADICAL FUNCTIONALIZATION USING VISIBLE LIGHT |
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Alexey A. Volkov | 1149-1151 |

RECENT ADVANCES IN THE SYNTHETIC APPROACHES TO 2-PYRIDONES |
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Dhananjay Bhattacherjee, Grigory V. Zyryanov, Pralay Das | 1152-1154 |

SYNTHETIC APPROACHES TO PYRIDO[1,2-a]INDOLES |
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Igor L. Nikonov, Dmitry S. Kopchuk, Grigory V. Zyryanov, Oleg N. Chupakhin | 1155-1157 |

3,4-ETHYLENEDIOXYTHIOPHENES: METHODS OF CONSTRUCTION AND POSTMODIFICATION |
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Elena L. Klimareva, Grigory V. Zyryanov | 1158-1160 |

Original Papers
Synthesis of 2-aminochromene derivatives from 1-(2-imino-2H-chromen-3-yl)pyridin-1-ium perchlorates and nitromethane in basic medium |
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Ольга А. Стороженко, Сяои Юэ, Алексей A. Феста, Алексей A. Варламов, Леонид Г. Воскресенский | 1161-1166 |

SYNTHESIS AND EVALUATION OF THE CYTOTOXICITY OF INDENO[1,2-c]ISOQUINOLINE DERIVATIVES BEARING ESTER FUNCTIONAL GROUP AND 1,2,3-TRIAZOLE MOIETY |
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Hoai Thu Pham, Giang Le-Nhat-Thuy, Tuyet Thi Anh Dang, Phuong Thi Hoang, Tuan Anh Nguyen, Thanh Ha Nguyen, Tien Dung Nguyen, Hanh Thuong Ngo, Tuan Anh Le, Tuyen Van Nguyen | 1167-1172 |

PARALLEL SYNTHESIS OF DERIVATIVES OF 1H-1,2,4-TRIAZOLE-3-CARBOXYLIC ACIDS WITH HETEROCYCLIC SUBSTITUENTS AT POSITION 5 |
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Любовь Е. Гребенкина, Андрей В. Матвеев, Михаил В. Чудинов | 1173-1179 |

INTRAMOLECULAR CYCLIZATION OF 2-(HETEROARYLSULFANYL)- N-(3-OXOALKENYL)ACETAMIDES: SYNTHESIS OF 3-(HETEROARYLSULFANYL)- AND 3-SULFANYLPYRIDIN-2(1H)-ONES |
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Ольга А. Савченко, Вера В. Мусияк, Дмитрий С. Гончаров, Юлия П. Богза, Антон Л. Шацаускас, Валентин П. Талзи, Сергей Н. Евдокимов, Евгений Б. Ульянкин, Александр С. Фисюк | 1180-1186 |

SYNTHESIS AND STRUCTURE OF 2-ARYLAMINO-SUBSTITUTED 4-(DICHLOROMETHYLIDENE)-3-NITRO-4H-PYRIDO[1,2-a]PYRIMIDINES |
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Ирина А. Колесник, Сергей К. Петкевич, Петр В. Курман, Александр С. Ляхов, Людмила С. Ивашкевич, Хонгвэй Чжоу, Владимир И. Поткин | 1187-1192 |

CYCLOADDITION OF NITRONES TO 1,3-DIARYLPROPENONES AND SUBSEQUENT TRANSFORMATIONS OF THE RESULTING ISOXAZOLIDINES |
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Екатерина В. Сироткина, Мария М. Ефремова, Галина Л. Старова, Михаил А. Кузнецов, Александр П. Молчанов | 1193-1201 |

SYNTHESIS, STUDY OF THE STRUCTURE, AND MODIFICATION OF THE PRODUCTS OF THE REACTION OF 4-ARYL-4-OXOBUT-2-ENOIC ACIDS WITH THIOUREA |
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Hадежда H. Kолос, Николай В. Назаренко, Светлана В. Шишкина, Андрей О. Дорошенко, Елена Г. Швец, Максим А. Колосов, Федор Г. Яременко | 1202-1209 |

Short Communications
ON THE QUESTION OF THE MOLECULAR MECHANISM OF N-NITROPYRAZOLE REARRANGEMENT |
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Radomir Jasiński | 1210-1212 |

REACTIONS OF THIIRANES WITH NH-HETEROCYCLES. 1. AN INVESTIGATION OF THE REACTION OF 2-CHLOROMETHYLTHIIRANE WITH 3,5-DIBROMO-4-NITROPYRAZOLE |
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Феркат А. Халиуллин, Елена Э. Клен, Надежда Н. Макарова, Светлана О. Шепилова, Ирина П. Байкова | 1213-1217 |

FORMAL [3+3] CYCLOADDITION REACTION OF 4-HYDROXYTHIOCOUMARIN TO 4Н-CHROMENE-3-CARBALDEHYDES: SYNTHESIS OF THIOCHROMENO[3',4':5,6]PYRANO[2,3-b]CHROMEN-6-ONES |
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Ирина А. Семенова, Дмитрий В. Осипов, Юлия В. Попова, Виталий А. Осянин, Олег П. Демидов, Юрий Н. Климочкин | 1218-1221 |

REACTION OF N-BENZYL AZOMETHINE YLIDE WITH ARYL ISOTHIOCYANATES: SYNTHESIS OF (Z)-N-ARYL-3-BENZYLTHIAZOLIDINE-5-IMINES |
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Евгений М. Буев, Анна П. Осинцева, Владимир С. Мошкин, Вячеслав Я. Сосновских | 1222-1225 |

DIFFERENT REGIOCHEMICAL OUTCOMES IN ANNULATION REACTIONS OF PYRIDINE-2-SULFENYL CHLORIDE WITH PHENYL VINYL CHALCOGENIDES AND ALLYL PHENYL CHALCOGENIDES |
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Владимир А. Потапов, Роман С. Ишигеев, Ирина В. Шкурченко, Светлана В. Амосова | 1226-1229 |

CHARACTERISTIC FEATURES OF INTERACTION BETWEEN (5-METHYL-1,3-THIAZOLIDIN-2-YLIDENE) KETONES AND TOSYL AZIDE |
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Мария Б. Литвинчук, Антон В. Бентя, Леся Н. Салиева, Эдуард Б. Русанов, Михаил В. Вовк | 1230-1233 |

SYNTHESIS OF THE FIRST DIBENZO-4,12-DITHIO-8-AZACROWNOPHANES CONTAINING γ-ARYLPYRIDINE SUBUNIT |
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Thanh Tam Pham Thi, Thao Thuyen Do, Tien Dat Nguyen, Van Boi Luu, Elena I. Polyakova, Thanh Van Tran Thi, Tuan Anh Le | 1234-1236 |

REGIO- AND STEREOSELECTIVE SYNTHESIS OF (Z)-(2,3-DIHYDRO-1,4-THIASELENIN-2-YL) VINYL SULFIDES FROM 2-BROMOMETHYL-1,3-THIASELENOLE UNDER PHASE-TRANSFER CATALYSIS CONDITIONS |
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Андрей С. Филиппов, Светлана В. Амосова, Владимир А. Потапов | 1237-1240 |

Latvian Institute of Organic Synthesis - Aizkraukles iela, 21, Riga, LV-1006, Latvia - hgs@osi.lv