发明名称 PROCESS FOR PRODUCING ALPHA -DIOL-GAMMA-DIOXO-COMPOUNDS
摘要 1505667 Diol-diones SNAMPROGETTI SpA 12 June 1975 [12 June 1974] 25278/75 Heading C2C Compounds of formula where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrocarbyl or hydrogen, are prepared by oxidizing with an oxidizing system comprising osmium tetroxide and an alkali or alkaline earth metal chlorate. Water or an organic solvent may be used. Osmium tetroxide may be recovered by flushing with an inert gas and trapping in a quantity of the starting material or by solvent extraction followed by addition of starting material to the extract and evaporation of the solvent. An example prepares erythro-3,4- dihydroxy-hexan-2,5-dione. Reference has been directed by the Comptroller to Specification 1,188,886.
申请公布号 HU172080(B) 申请公布日期 1978.05.28
申请号 HU1975SA02801 申请日期 1975.06.11
申请人 SNAMPROGETTI SPA,IT 发明人 RE,LUCIANO,IT;CACIAGLI,VALERIO,IT
分类号 C07C45/00;C07C45/59;C07C49/00;C07C49/17;C07C67/00 主分类号 C07C45/00
代理机构 代理人
主权项
地址