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SUBSTITUTION OF HALOGEN ATOM IN ALPHA-HALONITRO COMPOUNDS OF THE ALIPHATIC SERIES .6. PREPARATION AND REDUCTION OF ALKYL ALPHA-HALO-SUBSTITUTED AND ALPHA-SULFO-SUBSTITUTED ALPHA-NITROCARBOXYLATESстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: YURTANOV A.I., BAIDILDAEVA S.K., CHEKHLOV A.N., ZEFIROV N.S.
- Журнал: Russian Chemical Bulletin
- Том: 43
- Номер: 5
- Год издания: 1994
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 816
- Последняя страница: 820
- DOI: 10.1007/BF00717345
- Аннотация: Ethyl alpha-halo-alpha-nitropropionate and -butyrate were prepared by alkylating ammonium salts of ethyl bromo- and chloronitroacetates. The addition of alkyl acrylates to alkyl chloronitroacetates or their salts gives dialkyl alpha-chloro-alpha-nitroglutarates. Sodium salts of ethyl alpha-nitro-alpha-sulfo-beta-hydroxypropionate and -butyrate were obtained by the sulfo-dehalogenation of ethyl alpha-chloro-alpha-nitro-beta-hydroxypropionate and -butyrate with sodium dithionite. Esters of a-amino acid hydrochlorides were prepared by the reduction of alkyl alpha-chloro-alpha-nitrocarboxylates. The hydrogenation of alkyl nitrosulfoacetates leads to the corresponding disodium salts of alkyl aminodisulfoacetates and piperazine-2,5-dione.
- Добавил в систему: Зефиров Николай Серафимович