📜乙酸酐,三乙二醇置于phosphorus Pentoxide,Silica Gel体系中,用93%的收率获得三甘醇二乙酸酯 参考文献:Eshghi,Hossein; Shafieyoon,Parvaneh,Journal Of Chemical Research,2004,# 12,P. 802-805 标题:Eshghi,Hossein; Shafieyoon,Parvaneh,Journal Of Chemical Research,2004,# 12,P. 802-805
专利号:US-2024383831-A1 优先权日:2021-10-07 标 题 :Alkoxylation of cannabidiol and other cannabinoids 发明人:LAHASKY SAMUEL; SHARP KIP DOUGLAS; SLIKTA ALBERTO; PRESTRIDGE BRITNEY HEBERT; BARKER EMILY MATTHEWS; RICHARDSON RYAN 权利人:INDORAMA VENTURES OXIDES LLC 摘要:The present disclosure generally relates to the synthesis of an alkoxylated cannabinoid using a double metal cyanide (DMC) catalyst. This procedure affords a novel process for preparing water-dispersible and water-soluble versions of cannabidiol (CBD) and other cannabinoids in high yields through mild reaction conditions.
专利号:US-11673874-B2 优先权日:2018-08-17 标 题 :Synthesis of chromanol derivatives 发明人:WEINGARTEN MELANIE; SIEGEL WOLFGANG; PUHL MICHAEL 权利人:BASF SE 摘要:The present invention relates to a process for the production of chromanol derivatives, more specifically to a process for preparing a compound of the general formula I wherein R 1 , R 2 and R 3 independently of each other are selected from hydrogen and methyl, R 4 is selected from C- 1 -C 6 -alkyl, and X is selected from C 1 -C 20 -alkyl and C 2 -C 20 -alkenyl.
专利号:US-12103918-B2 优先权日:2018-08-17 标题 :Synthesis of chromanol derivatives 发明人:WEINGARTEN MELANIE; SIEGEL WOLFGANG; PUHL MICHAEL 权利人:BASF SE 摘要:The present invention relates to a process for the production of chromanol derivatives, more specifically to a process for preparing a compound of the general formula (I) wherein R 1 , R 2 and R 3 independently of each other are selected from hydrogen and methyl, R 4 is selected from hydrogen and C 1 -C 6 -alkanoyl, and X is selected from C 1 -C 20 -alkyl and C 2 -C 20 -alkenyl.
专利号:US-12168649-B2 优先权日:2018-08-17 标 题 :Synthesis of chromanol and 2-methyl-1,4-naphthoquinone derivatives 发明人:WEINGARTEN MELANIE; SIEGEL WOLFGANG; PUHL MICHAEL 权利人:BASF SE 摘要:The present invention relates to a process for the production of chromanol and 2-methyl-1,4-naphthoquinone derivatives, more specifically to a process for preparing a compound of the general formula (I) or (II) wherein the variables are as defined in the claims and the description.
专利号:US-12247239-B2 优先权日:2019-06-21 标题:Chemo-enzymatic process for the preparation of homopropargylic alcohol 发明人:CHANDRASEKHAR SRIVARI; GHOSH SUBHASH; KRISHNA AVULA SHIVA; REDDY CHADA RAJI; SUDHAKAR GANGARAJULA; THENKRISHNAN KUMARAGURU; PABBARAJA SRIHARI; MAINKAR PRATHAMA SATYENDRA; NASAM RAJESH 权利人:COUNCIL SCIENT IND RES; COUNCIL SCIENT IND RES 摘要:The present invention relates to an enzymatic process for preparation of optically pure enantiomers of homopropargylic alcohol compounds of formula I, which are useful intermediates for the synthesis of Halichondrin B and analogs. wherein, P is H or an alcohol protecting group, n is an integer ranging from 0-12.
专利号:US-5556924-A 优先权日:1993-11-01 标题 :Synthesis of photoreactive polymeric binders 发明人:FITZGERALD MAURICE J; KEARNEY FREDERICK R; LIANG RONG-CHANG; SCHWARZEL WILLIAM C 权利人:POLAROID CORP 摘要:A photoreactive binder that may be used to enhance photospeed in either conventional plates or on-press developable lithographic printing plates. Briefly, a polymer of m-isopropenyl- alpha , alpha -dimethylbenzyl isocyanate is derivatized for vinyl group reactivity by reacting the isocyanate groups thereof with hydroxyalkyl acrylate. The resulting photopolymeric binder provides significantly higher photospeed than the non-reactive binder currently utilized in the production of conventional printing plates. The resulting lithographic printing plate also shows better durability (as manifested by longer run-length) and is more easily developed by the microencapsulated developers utilized in the present invention. As to the preparation of the photoreactive binders, the application discloses a method of copolymerizing m-isopropenyl- alpha , alpha -dimethylbenzyl isocyanate (m-TMI) through complexation with an electron-deficient monomer such as maleic anhydride to accelerate free radical copolymerization with other monomers, and thus, provides greater monomer-to-polymer conversion. Use of the resulting product in the photoresist of a lithographic printing plate improves its adhesion to an underlying substrate.
参考标题: Synthesis Of Chromanol And 2-Methyl-1,4-Naphthoquinone Derivatives Synthèse De Dérivés De Chromanol Et De 2-Méthyl-1,4-Naphtoquinone 摘要:The Present Invention Relates To A Process For The Production Of Chromanol And 2-Methyl-1,4-Naphthoquinone Derivatives, More Specifically To A Process For Preparing A Compound Of The General Formula (I) Or (II) Wherein The Variables Are As Defined In The Claims And The Description.
合成参考文献
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