CAS: 108-95-2; Phenol

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CAS号108-86-1 溴苯 | CAS号106991-88-2 1-[4-[4-[4-(4-a... | CAS号10268-69-6 邻氨基苯甲酸苯酯 | CAS号109392-90-7 苯基吖啶-9-羧酸酯 | CAS号100-67-4 苯酚钾 | CAS号67-56-1 甲醇 | CAS号101-65-5 N,N’-[亚甲基二(4,1-... | CAS号10419-35-9 2-乙氧基苯并二氢吡喃 | CAS号111198-02-8 1-(苯氧基甲基)-1H-苯并三唑 | CAS号108098-38-0 2-[(decylamino)... | CAS号1077-05-0 1,3,2-Dioxaphos...

苯基-Beta-葡萄糖吡喃糖苷置于5 Wt% Ruthenium/carbon,氯化乙酰胆碱,乙二醇体系中,化学反应生成苯酚
参考文献:木质纤维素的氢转移还原催化分馏:单体产率高且选择性可切换
标题:木质纤维素的氢转移还原催化分馏:单体产率高且选择性可切换
摘要:这项工作展示了木质纤维素的氢转移还原催化分馏.通过引入氯化胆碱的氢键受体,可以实现具有可切换选择性的高产率芳香族单体.氯化胆碱极大地改善了木质素的溶解并调整了木质素的氢解作用.所提出的策略促进了有针对性的木质素增值和木质素优先生物精炼厂的发展.
Doi:10.1002/anie.202307116

专利信息

专利号:US-12421534-B2
优先权日:2021-11-10
标 题 :Engineered enzymes and method for the synthesis of diverse tyrosine analogs
发明人：ALMHJELL PATRICK J; ARNOLD FRANCES H
权利人:CALIFORNIA INST OF TECHN
摘要:Provided herein is an engineered tryptophan synthase β-subunit (TrpB) that catalyzes the synthesis of tyrosine, tyrosine analogs, or salts thereof. Also provided herein are methods for preparing tyrosine, tyrosine analogs, or a salt thereof using the engineered TrpB described herein.

专利号:US-2008287649-A1
优先权日:2006-12-29
标 题 :Methods for the synthesis of cyclic peptides
发明人：CHEN LIN; HAN YEUN-KWEI; ROBERTS CHRISTOPHER R
权利人:CHEN LIN; HAN YEUN-KWEI; ROBERTS CHRISTOPHER R
摘要:Methods for the synthesis of cyclic peptides are provided, as well as novel dipeptide compounds. The methods include the solid phase synthesis of a dipeptide, which is the coupled to a second peptide in a solid phase reaction. The peptide is then cyclized following the coupling reaction. The methods and dipeptides are particularly useful for the synthesis of MC-4 receptor agonist peptides.

专利号:US-8138330-B2
优先权日:2006-09-11
标 题 :Process for the synthesis of oligonucleotides
发明人：LEUCK MICHAEL; WOLTER ANDREAS; STUMPE ALFRED
权利人:LEUCK MICHAEL; WOLTER ANDREAS; STUMPE ALFRED; SIGMA ALDRICH CO LLC
摘要:The present invention discloses novel methods for the synthesis of oligonucleotides with nucleoside phosphoramidites on solid supports. The methods comprise the stepwise chain assembly of oligonucleotides on supports with 5′-acyl phosphoramidites. The synthesis cycles consist of a front end deprotection step which is conducted with a solution of a primary amine or a phenolate, a phosphoramidite coupling step with a 5′-acyl nucleoside phosphoramidite in the presence of an activator, a phosphite oxidation step and an optional capping step. The novel methods improve the quality of synthetic oligonucleotides due to the irreversibility of the front end deprotection step, which prevents the formation of deletion sequences, and due to the avoidance of acidic reagents in the synthesis cycles, which prevent the formation of depurination side products. The invention further discloses novel nucleoside phosphoramidite compositions wherein the phosphoramidites carry acyl front end protective groups which are cleavable with primary amines or phenolates. The invention is applicable to the synthesis of oligodeoxyribonucleotides, oligoribonucleotides and oligonucleotides with modifications in their sugar or phosphate groups.

专利号:EP-1634887-A3
优先权日:2004-07-23
标题 :Process for synthesis of complex 2-deoxy-2-iodo pyranosides of high purity, particularly suitable for manufacturing pharmaceutically pure annamycin
发明人：SZEJA WIESLAW; FOKT IZABELA; GRYNKIEWICZ GRZEGORZ
权利人:ZAKLAD BADAWCZO PROD
摘要:The method according to the invention comprises using as glycosyl donors high purity 2-deoxy-2-iodo derivatives of sugars of a defined configuration of C-2 carbon with O-alkyl, S-alkyl, O-aryl, S-aryl, O-heteroaryl, S-heteroaryl, O-acyl, O-silyl, O-N-imido, O-P-(phosphino, phosphono, thiophosphono, selenophosphono) groups at the anomeric position, and subjecting them to a condensation reaction with a compound containing a hydroxyl group or a protected hydroxyl group in the presence of electrophilic reagents, followed by deprotection and isolation of a pharmaceutically pure product. The objective of the present invention is to provide a method for preparing complex glycosides by coupling cyclic multifunctional compounds containing hydroxyl functional groups (glycosyl acceptors, including aglycones of natural origin which are known as constituents of active pharmaceutical ingredients) with diastereoisomerically pure 2-deoxy-2-halopyranosyl derivatives containing anomeric substituent capable of exchange under glycosidating conditions, for example by virtue of activation with electrophilic agents. This method substantially simplifies the synthesis of Annamycin. n The present invention relies on a regio- and stereoselective reaction of cohalogenating 1,2-unsaturated sugars in the presence of hydroxyl group containing compounds, such as: water, alcohols, phenols, carboxylic acids, silanols, phosphinic acids, phosphoric acids, thiophosphoric acids, selenophosphoric acids, followed by separation of the product with proper C-2 carbon configuration required for the synthesis. As the separation of stereoisomers is carried out at the stage of obtaining a relatively inexpensive intermediate in the form of glycosyl donor, the method of the invention substantially reduces the cost of Annamycin manufacture. Other advantages of the synthesis process of the invention consist in the reduction of the number of stages of the antibiotic manufacture process and in yield increase of the final product.

专利号:EP-0671928-B1
优先权日:1992-09-24
标题 :Synthesis of n-substituted oligomers
发明人：ZUCKERMANN RONALD N; KERR JANICE M; KENT STEPHEN BRIAN HENRY; MOOS WALTER H; SIMON REYNA J; GOFF DANE A
权利人:CHIRON CORP
摘要:Poly N-substituted Glycines (poly NSGs), wherein the substituents bear purine or pyrimidine bases (R<9>) every second glycine: In addition, a solid phase method for the synthesis of N-substituted oligomers of more general structures is disclosed.The poly NSGs obtainable by this method can have a wide variety of side-chain substituents. Each N-substituted glycine monomer is assembled from two 'sub-monomers' directly on the solid support. Each cycle of monomer addition consists of two steps: (1) acylation of a secondary amine bound to the support with an acylating agent comprising a leaving group capable of nucleophilic displacement by -NH2, such as a haloacetic acid, and (2) introduction of the side-chain by nucleophilic displacement of the leaving group, such as halogen (as a resin-bound alpha -haloacetamide) with a sufficient amount of a second sub-monomer comprising an -NH2 group, such as a primary amine, alkoxyamine, semicarbazide, acyl hydrazide, carbazate or the like. Repetition of the two step cycle of acylation and displacement gives the desired oligomers. The efficient synthesis of a wide variety of oligomeric NSGs using the automated synthesis technology of the present method makes these oligomers attractive candidates for the generation and rapid screening of diverse peptidomimetic libraries. The oligomers of the invention, such as N-substituted glycines (i.e. poly NSGs) disclosed here provide a new class of peptide-like compounds not found in nature, but which are synthetically accessible and have been shown to possess significant biological activity and proteolytic stability.

专利号:US-5118853-A
优先权日:1988-10-13
标题:Processes for the synthesis of 3-disubstituted aminoacroleins
发明人：LEE GEORGE T; REPIC OLJAN
权利人:SANDOZ LTD
摘要:Process for the synthesis of compounds of the formula ##STR1## comprising the steps of (i) reacting a compound of the formula ##STR2## with oxalyl chloride or oxalyl bromide to form the corresponding compound of the formula ##STR3## (ii) reacting said compound of the formula ##STR4## with a compound of the formula ##STR5## to form the corresponding compound of the formula ##STR6## (iii) hydrolyzing said compound of the formula ##STR7## to obtain the corresponding compound of the formula ##STR8## the use of the compounds of the formula ##STR9## for the synthesis of the compounds of the formula ##STR10## and the use of the intermediates of Formula VII for the direct synthesis of the compounds of Formula II, n wherein n R 1 is C 1-3 alkyl, phenyl or phenyl substituted by 1 to 3 substituents each of which is independently C 1-3 alkyl, C 1-3 alkoxy, fluoro, chloro, bromo or nitro (maximum of two nitro groups), n R 1b is phenyl or phenyl substituted by 1 to 3 substituents each of which is independently C 1-3 alkyl, C 1-3 alkoxy, fluoro, chloro, bromo or nitro (maximum of two nitro groups), n R 2 is C 1-3 alkyl, n one of R 3 and R 4 is ##STR11## and the other is primary or secondary C 1-6 alkyl not containing an asymmetric carbon atom, C 3-6 cycloalkyl or phenyl-(CH 2 ) m -, n wherein n R 7 is hydrogen, C 1-3 alkyl, n-butyl, i-butyl, t-butyl, C 1-3 alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, n R 8 is hydrogen, C 1-3 alkyl, C 1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, n R 9 is hydrogen, C 1-2 alkyl, C 1-2 alkoxy, fluoro or chloro, and n m is 1, 2 or 3, with the provisos that not more than one of R 7 and R 8 is trifluoromethyl, not more than one of R 7 and R 8 is phenoxy, and not more than one of R 7 and R 8 is benzyloxy, n R 5 is hydrogen, C 1-3 alkyl, n-butyl, i-butyl, t-butyl, C 3-6 cycloalkyl, C 1-3 alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, and n R 6 is hydrogen, C 1-3 alkyl, C 1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy, or benzyloxy, with the provisos that not more than one of R 5 and R 6 is trifluoromethyl, not more than one of R 5 and R 6 is phenoxy, and not more than one of R 5 and R 6 is benzyloxy, n R 10 is C 1-6 alkyl, each X is chloro or bromo, and each X.sup.⊖ is chloride or bromide.