专利号:US-5446203-A 优先权日:1992-08-25 标题:Synthesis of haloenones and aryl or alkyl substituted enones or alkenes 发明人:MCNELIS EDWARD 权利人:UNIV NEW YORK 摘要:Alternative methods for synthesizing haloenones and haloakenes and their use as starting materials for synthesis of substituted or unsubstituted alkyl and aryl substituted enones and alkenes, including tamoxifen and tamoxifen analogs, using such haloenones and haloalkenes.
专利号:US-3978100-A 优先权日:1973-04-18 标题:Allenic esters, process for preparation thereof and process for rearrangement thereof 发明人:FUJITA YOSHIJI; OMURA YOSHIAKI; HISHIDA TAKASHI; ITOI KAZUO 权利人:KURARAY CO 摘要:Allenic esters of the formula: ##EQU1## (specific examples of R, R 1 , R 2 , R 3 and R 4 are given) and a process for the preparation thereof which comprises reacting propargyl alcohol derivatives with 2-substituted ortho-acetic acid esters in the presence of an acidic catalyst. These allenic esters are rearranged in the presence of an alkali catalyst to form α, β, γ, δ-unsaturated carboxylic acid esters and are useful as intermediates in the synthesis of various perfumes, medicines, agricultural chemicals and the like.
专利号:US-4158672-A 优先权日:1976-01-26 标题 :Polyfluoroalkylthio alcohols, esters and useful compositions therefrom 发明人:DEAR ROBERT E A; BRACE NEAL O 权利人:CIBA GEIGY CORP 摘要:Polyfluoroalkylthio alcohols and esters thereof are disclosed with utility as intermediates for the synthesis of fluorochemicals with low free surface energies having oil and water repellent properties. The novel alcohols and esters are obtained by a free radical catalyzed addition of polyfluoroalkylthiols to acetylenic alcohols or esters thereof. The alcohols are employed in preparation of fluorine containing polyurethanes which are useful as finishes to provide oil and water repellency to textiles and as additives to plastics to provide mold release and other desirable properties.
专利号:EP-0656878-A1 优先权日:1992-08-25 标题 :Synthesis of haloenones and aryl or alkyl substituted enones or alkenes
专利号:WO-9405617-A1 优先权日:1992-08-25 标 题 :Synthesis of haloenones and aryl or alkyl substituted enones or alkenes
专利号:EP-0656878-A4 优先权日:1992-08-25 标题:Synthesis of haloenones and aryl or alkyl substituted enones or alkenes.