Kazan Federal University Digital Repository

Structure and properties of the products of the reactions of trialkylphosphites and dialkylphosphorous acids with ethylideneacetylacetone and ethylideneacetoacetic ester

Show simple item record

dc.contributor.author Arbuzov B.
dc.contributor.author Polezhaeva N.
dc.contributor.author Vinogradova V.
dc.date.accessioned 2018-09-14T20:22:45Z
dc.date.available 2018-09-14T20:22:45Z
dc.date.issued 1967
dc.identifier.issn 0568-5230
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/132406
dc.description.abstract 1. Trialkylphosphites react with ethylideneacetylacetone and ethylideneacetoacetic ester under mild conditions (20-40°, dry nitrogen atmosphere) to form 2,2,2-trialkoxy-3,5-dimethyl-4-acetyl-1-oxa-2-phosphacyclopent-4-enes and 2,2,2-trialkoxy-3,5-dimethyl-4-carboethoxy-1-oxa-2-phosphacyclopent-4-enes, respectively. 2. The reaction of the phosphoranes with alcohol, acetic anhydride, and water results in cleavage of the phosphorane ring at the P-O bond. 3. Hydrolysis of the phosphoranes yields esters of l-methyl-2,2-diacetyl- and 1-methyl-2-acetyl-2-carboethoxyethylphosphonic acids. The keto-enol tautomerism of these compounds was studied by ultra-violet spsctroscopy. 4. Distillation of the phosphorane hydrolysis products resulted in the splitting out of alcohol and the formation of 2-oxo-2-alkoxy-3,5-dimethyl-4-acetyl-1-oxa-2-phosphacyclopent-4-enes and 2-oxo-2-alkoxy-3, 5-dimethyl-4-carboethoxy-l-oxa-2-phosphacyclopent-4-enes, respectively. These same esters were also obtained from the reaction of ethylideneacetylacetone and ethylideneacetoacetic ester with dialkylphosphorous acids. 5. The structures of all compounds synthesized were confirmed by infrared spectra. © 1968 Consultants Bureau.
dc.relation.ispartofseries Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
dc.title Structure and properties of the products of the reactions of trialkylphosphites and dialkylphosphorous acids with ethylideneacetylacetone and ethylideneacetoacetic ester
dc.type Article
dc.relation.ispartofseries-issue 10
dc.relation.ispartofseries-volume 16
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 2185
dc.source.id SCOPUS05685230-1967-16-10-SID34250517821


Files in this item

This item appears in the following Collection(s)

  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

Show simple item record

Search DSpace


Advanced Search

Browse

My Account

Statistics