CAS: 4744-08-5; Propionaldehyde Diethyl Acetal

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CAS号123-38-6 丙醛 | CAS号122-51-0 原甲酸三乙酯 | CAS号64-17-5 乙醇 | CAS号97-93-8 三乙基铝 | CAS号4696-26-8 ethyl (1-propen... | CAS号14036-06-7 乙酸二乙氧基甲酯 | CAS号96-10-6 一氯二乙基铝 | CAS号925-90-6 乙基溴化镁 | CAS号35573-93-4 3-氯丙醛二乙基乙缩醛 | CAS号201230-82-2 carbon monoxide | CAS号40834-42-2 4-甲基-5-羟基呋喃-2-酮 | CAS号3400-55-3 2-溴乙二醇二乙缩醛 | CAS号557-31-3 烯丙基乙基醚 | CAS号64-17-5 乙醇 | CAS号540-67-0 甲乙醚 | CAS号628-32-0 乙丙醚 | CAS号928-55-2 乙基丙烯基醚 | CAS号4485-89-6 3-丙烯醛缩苯胺 | CAS号41398-85-0 2-羟基-5-甲基嘧啶 | CAS号19125-76-9 2-甲基-3-二甲氨基-2-丙烯醛

📜3-氯丙醛二乙醇缩醛置于水,Naphthalen-1-Yl-Lithium体系中,用 四氢呋喃 作为反应溶剂,化学反应 8.0H,反应生成 丙醛二乙基乙缩醛
参考文献:3,3-二乙氧基丙基-锂:掩蔽的丙酸丙烯酸锂
标题:3,3-二乙氧基丙基-锂:掩蔽的丙酸丙烯酸锂
摘要:3,3-二乙氧基丙基锂是通过在-78oc下用萘化锂将相应的氯化前体锂化而制得的;该被掩盖的丙醛均烯酸酯与不同的亲电试剂[H2O,D 2 O,(phch 2)2 S 2,Nc 3 H 7 Cho,Phcho,Nc 7 H 15 Cho,Phch Nph]的反应会导致相应的单-和双功能化合物.
DOI:10.1039/c39870000425

专利信息

专利号:US-5191087-A
优先权日:1991-07-24
标 题 :Process for the synthesis of 1,4-disubstituted pyrazoles
发明人：ALCARAZ JEAN-MARIE; LECACHEUR MARYSE; ROBIN YVES
权利人:POUDRES & EXPLOSIFS STE NALE
摘要:The present invention relates to a process for the synthesis of 1,4-disubstituted pyrazoles. A monosubstituted hydrazine is reacted with the product of reaction of an acetal with an N-substituted halomethyliminium salt, preferably N,N-dimethylchloromethyliminium chloride. n The 1,4-disubstituted pyrazoles are, in particular, important intermediates in the synthesis of herbicides or drugs.

专利号:US-5576426-A
优先权日:1988-08-30
标 题:Aldolase catalyzed stereoselective synthesis of arabinohexulose, xyloheptulose, threohexulose and xylohexulose
发明人：WONG CHI-HUEY; DURRWACHTER JOHN R; PEDERSON RICHARD L
权利人:SEARLE & CO
摘要:The present invention relates to aldolase catalyzed stereo-selective synthesis of sugars and compositions of matter comprising arabinohexulose, xyloheptulose, threohexulose, and xylohexulose.

专利号:WO-2024259491-A1
优先权日:2023-06-23
标 题:New synthesis method
发明人：FORD DANIEL; POZNAKS VIKTORS; FOTINS JURIS; ÄŒERÅ…AKS DMITRIJS
权利人:THE HEART RES INSTITUTE LTD
摘要:The present disclosure generally relates to a process for the synthesis of AZD6482. In particular, the present disclosure also relates to a process for the synthesis of enantiomerically pure AZD6482. The present disclosure also relates to a process for the synthesis of enantiomerically pure intermediates. The present disclosure also relates to compounds prepared by the processes and the use of such compounds to prepare compositions and to treat disorders.

专利号:US-5998633-A
优先权日:1996-07-29
标 题:Process for the synthesis of protected esters of (S)-3,4-dihydroxybutyric acid
发明人：JACKS THOMAS E; BUTLER DONALD E
权利人:WARNER LAMBERT CO
摘要:The invention is an improved process for the preparation of a compound of formula I wherein R and R 1 are each independently alkyl of from 1 to 3 carbon atoms; and R 2 is alkyl of from 1 to 8 carbon atoms. ##STR1##

专利号:US-9067944-B2
优先权日:2010-10-21
标题:Process for the preparation of anagrelide and analogues thereof
发明人：MCGEE PAUL
权利人:MCGEE PAUL; SHIRE LLC
摘要:The present invention relates to a novel process for producing anagrelide, 6,7-dichloro-1,5-dihydroimidazo[2,1-b]quinazolin 2(3H)-one, or certain analogs thereof. The process of the invention also provides improved processes for producing key intermediates required for the synthesis of anagrelide or certain analogs thereof.

专利号:US-6217798-B1
优先权日:1998-10-09
标 题 :Method for synthesis of a dilithium diisopropenylbenzene-based diinitiator
发明人：WILLIS CARL LESLEY; HADDIX GRANT WESLEY; SCHISLA DAVID KARL; VAN DER STEEN FRED HENDRIK
权利人:SHELL OIL CO
摘要:This invention is a process for making a difunctional lithium initiator which comprises reacting a secondary or tertiary lithium alkyl with a diisopropenylbenzene compound in the presence of diethyl ether at a temperature of 25 to 50° C. wherein the molar ratio of the diethyl ether to the lithium alkyl is from above 0.1:1 to 2:1 and the diisopropenylbenzene compound and the diethyl ether are first mixed together and then added to the lithium alkyl. The molar ratio of the diisopropenylbenzene compound to the lithium alkyl should be as close to 0.5:1 as possible. An excess of lithium alkyl may be used if a product containing both diinitiator and monoinitiator is preferred. It is preferred that the molar ratio of diethyl ether to lithium alkyl be as close to 1:1 as possible.