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CAS号78-83-1 异丁醇 | CAS号64-18-6 甲酸 | CAS号109-53-5 异丁基乙烯基醚 | CAS号67-56-1 甲醇 | CAS号107-31-3 甲酸甲酯 | CAS号16754-49-7 原甲酸三异丁酯 | CAS号98-88-4 苯甲酰氯 | CAS号110-05-4 二叔丁基过氧化物 | CAS号76050-98-1 methoxyisobutox... | CAS号13259-29-5 sodium 2-methyl... | CAS号627-02-1 异丁醚 | CAS号10285-87-7 Formamide,N-(3-... | CAS号1012-72-2 1,4-二叔丁基苯 | CAS号93-58-3 苯甲酸甲酯 | CAS号120-50-3 苯甲酸异丁酯 | CAS号71-43-2 苯 | CAS号110-19-0 乙酸异丁酯 | CAS号60068-08-8 4-(2-methylprop... | CAS号64-18-6 甲酸

异戊醛置于水,P-(Trifluoromethyl)Phenyl(Difluoro)-λ3-Bromane体系中,用 二氯甲烷 作为反应溶剂,化学反应 1.0H,以78%的收率获得产物甲酸异丁酯
参考文献:Baeyer-Villiger 氧化的高价 λ3-溴烷策略:初级脂肪族和芳香族醛向甲酸盐的选择性转化,这在经典的 Baeyer-Villiger 氧化中是缺失的
标题:Baeyer-Villiger 氧化的高价 λ3-溴烷策略:初级脂肪族和芳香族醛向甲酸盐的选择性转化,这在经典的 Baeyer-Villiger 氧化中是缺失的
摘要:Baeyer-Villiger 氧化 (Bvo) 的概念独特的现代策略被开发出来.我们的新方法涉及将水初始水合为羰基化合物,然后将溴烷 (Iii) 上的高价芳基-λ(3)-溴烷与所得水合物进行配体交换,从而产生一种新型的活化 Criegee 中间体.由于超核,中间体经历 Bv 重排并通过芳基-λ(3)-溴基的轻松还原消除产生酯.这种新策略可以选择性地诱导直链脂肪族和芳香族伯醛的 Bv 重排,这在经典 Bvo 中是缺失的:例如,辛醛和苯甲醛提供了高选择性(> 95%)的重排甲酸酯我们的条件,而尝试的经典 Bvo 仅产生羧酸.这牢固地确立了 Bvo 新方法论的强大性质.
DOI:10.1021/ja104330G

专利信息

专利号:US-9126995-B2
优先权日:2011-11-08
标题:Method for catalytic asymmetric synthesis of optically active isoxazoline compound and optically active isoxazoline compound
发明人：TOYAMA KEN-ICHI; MORIYAMA YUJI; MATOBA KAZUTAKA; YAOSAKA MANABU; IKEDA EITATSU
权利人:NISSAN CHEMICAL IND LTD
摘要:There is provided a method for catalytic asymmetric synthesis of optically active isoxazoline compound and an optically active isoxazoline compound. A method for catalytic asymmetric synthesis of optically active isoxazoline compound of a formula (6) including reacting an α,β-unsaturated carbonyl compound of a formula (1) and a hydroxylamine in a solvent in the presence of a base by adding a chiral phase transfer catalyst. An optically active isoxazoline compound of a formula (13) that can be synthesized by the method.

专利号:US-10787458-B2
优先权日:2014-09-25
标 题:Chiral synthesis of N-acyl-(3-substituted)-(8-substituted)-5,6-dihydro-[1,2,4]triazolo[4,3-A]pyrazines
发明人：HOVEYDA HAMID; DUTHEUIL GUILLAUME
权利人:OGEDA SA
摘要:Disclosed is a novel chiral synthesis of N-acyl-(3-substituted)-(8-substituted)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazines of Formula (I): n nor a solvate thereof. The novel chiral synthesis avoids the use of protection/deprotection steps.

专利号:US-6844461-B2
优先权日:2001-07-30
标 题:Synthesis of A-ring synthon of 19-NOR-1α,25-dihydroxyvitamin D3 from (D)-glucose
发明人：DELUCA HECTOR F; SHIMIZU MASATO; YAMADA SACHIKO
权利人:WISCONSIN ALUMNI RES FOUND
摘要:The present invention provides a method for the synthesis of an A-ring synthon phosphine oxide used in the preparation of 19-nor vitamin D compounds, and to novel synthetic intermediates formed during the synthesis. The new method prepares the phosphine oxide from (D)-glucose.

专利号:US-11292775-B2
优先权日:2017-12-21
标 题 :Efficient process for the synthesis of 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-3H-1,2,4-triazole-3-thione(prothioconazole) and its intermediates
发明人：KADAM SUBHASH RAJARAM; JANI NILESH; SHINDE RAVINDRA; SHAH KENAL V; SHAH BHAVESH V; GUJRAL AJIT SINGH; BYREGOWDA GANGANARASAIAH; SIVAIAH GANADI; PAWAR JIVAN DHANRAJ; PATI HARI NARAYAN
权利人:GSP Crop Science Pvt Ltd
摘要:The present invention relates to an improved and efficient process for the synthesis of 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-2,4-dihydro-3H-1,2,4-triazole-3-thione, compound of formula (I) (Prothioconazole). The present invention more particularly relates to an improved process for manufacturing of 2-(1-chloro-cycloprop-1-yl)-3-(2-chloro phenyl)-2-hydroxy propyl-1-hydrazine (compound of formula III) and 2-[2-(1-chlorocyclopropyl)-3-(2-chlorophenyl)-2-hydroxypropyl]-1,2,4-triazolidine-3-thione (compound of formula II) which are mainly used for synthesis of Prothioconazole which is knows as an active compound with microbicidal fungicidal properties.

专利号:WO-2017089470-A1
优先权日:2015-11-27
标 题:Process for the synthesis of aryldiazonium salts using nitrogen oxides in oxygen-containing gas streams, especially from industrial waste gases
发明人：HOFMANN DAGMAR; HOFMANN JOSEFA; HEINRICH MARKUS
权利人:Friedrich-Alexander-Universität Erlangen-Nürnberg
摘要:The present invention relates to a process for the synthesis of aryldiazonium salts using nitrogen oxides in oxygen-containing gas streams, especially from industrial waste gases.

专利号:US-7423169-B2
优先权日:2001-06-11
标 题:Methods for synthesis of acyloxyalkyl derivatives of GABA analogs
发明人：RAILLARD STEPHEN P; ZHOU CINDY X; YAO FENMEI; MANTHATI SURESH KUMAR; XIANG JIA-NING; GALLOP MARK A
权利人:XENOPORT INC
摘要:The synthesis of 1-(acyloxy)-alkyl carbamates of GABA analogs from 1-haloalkyl carbamates of GABA analogs are described. Also described are new 1-haloalkyl carbamates of GABA analogs.