Formation of fluorinated 1-oxaspiro[2.5]octa-4,7-dienes from polyfluorinated cyclohexa-2,5-dienones with diazomethane and reactions with aryl and 2-chloroethyl isocyanates

Formation of fluorinated 1-oxaspiro[2.5]octa-4,7-dienes from polyfluorinated cyclohexa-2,5-dienones with diazomethane and reactions with aryl and 2-chloroethyl isocyanates Научная публикация

Журнал

European Journal of Organic Chemistry
ISSN: 1434-193X , E-ISSN: 1099-0690

Вых. Данные

Год: 2005, Том: 2005, Номер: 6, Страницы: 1178-1183 Страниц : DOI: 10.1002/ejoc.200400559

Ключевые слова

fluorinated cyclohexadienones; heterocycles; oxiranes

Авторы

Kovtonyuk VN , Kobrina LS , Kataeva OM , Haufe G

Организации

1	(Данные Web of science) NN Vorozhtsov Inst Organ Chem, Novosibirsk 630090, Russia
2	(Данные Web of science) Univ Munster, Inst Organ Chem, D-48149 Munster, Germany

The reactions of four polyfluorinated cyclohexa-2,5-dienones 1a-1d, additionally substituted with an electron withdrawing substituent at the 4-position, with diazomethane give mixtures of two diastereomeric fluorinated 1-oxaspiro[2.5]octa-4,7-dienes 2 and 3. Compounds 2a/3a and 2b/3b react with aryl and 2-chloroethyl isocyanates in the presence of lithium chloride or sodium pentafluorophenoxide to form fluorinated dihydro-1,3-benzoxazol-2(3H)-ones 5a-5c as the major products, ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005).

Kovtonyuk V. , Kobrina L. , Kataeva O. , Haufe G.
Formation of fluorinated 1-oxaspiro[2.5]octa-4,7-dienes from polyfluorinated cyclohexa-2,5-dienones with diazomethane and reactions with aryl and 2-chloroethyl isocyanates
European Journal of Organic Chemistry. 2005. V.2005. N6. P.1178-1183. DOI: 10.1002/ejoc.200400559 WOS Scopus РИНЦ

Опубликована в печати:

1 мар. 2005 г.

Web of science	WOS:000227956400021
Scopus	2-s2.0-15944402110
РИНЦ	13494840
OpenAlex	W2163147013