CAS: 596-38-3; 9-Phenyl-9H-Xanthen-9-Ol

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CAS号117-99-7 2-羟基二苯甲酮 | CAS号88284-48-4 2-(三甲基硅)苯基三氟甲烷磺酸盐 | CAS号90-47-1 呫吨酮 | CAS号100-58-3 苯基溴化镁 | CAS号591-51-5 苯基锂 | CAS号42506-03-6 9-氯-9-苯基氧杂蒽 | CAS号3246-80-8 9-phenyl-9H-xanthene | CAS号101-84-8 二苯醚 | CAS号91-01-0 二苯甲醇 | CAS号100-52-7 苯甲醛 | CAS号90-47-1 呫吨酮 | CAS号155816-67-4 4-phenylnonan-2-one | CAS号644-08-6 4-甲基联苯 | CAS号58-72-0 三苯乙烯 | CAS号2770-17-4 11-Phenyldibenz... | CAS号6630-78-0 9-(3-nitropheny... | CAS号89192-82-5 [2-(2-hydroxyph... | CAS号61744-33-0 9-azido-9-pheny... | CAS号3976-34-9 2,6-DIMETHYLBIPHENYL

📜5'-O-Pixylthymidine 以 水,乙腈 作为反应溶剂,以83%的收率获得产物9-苯基苯二烯-9-醇
参考文献:The Pixyl (Px) Group: A Novel Photocleavable Protecting Group For Primary Alcohols
标题:The Pixyl (Px) Group: A Novel Photocleavable Protecting Group For Primary Alcohols
摘要:The 9-Phenylxanthyl (Pixyl Or Px) Moiety Has Been Investigated As A Potential Photocleavable Protecting Group For Primary Alcohols. Alcohols 2A-E Were Protected In Good Yield By Treatment With 9-Chloro-9-Phenylxanthene In Dry Pyridine At Room Temperature. Irradiation Of The Alcohol Derivatives In Neutral Aqueous Acetonitrile Regenerates 2A-E And The 9-Phenylxanthyl Alcohol. (C) 1998 Elsevier Science Ltd. All Rights Reserved.
DOI:10.1016/s0040-4039(98)00013-6

专利信息

专利号:US-5936080-A
优先权日:1996-05-24
标题 :Compositions and methods for the synthesis of organophosphorus derivatives
发明人：STEC WOJCIECH J; WOZNIAK LUCYNA
权利人:GENTA INC; POLSKA AKADEMIA NAUK INSTYTUT
摘要:New organophosphorus mononucleoside derivatives, methods of their synthesis and methods for the synthesis of organophosphorus dinucleotide derivatives utilizing the organophosphorus mononucleosides are provided. Synthesized organophosphorus mononucleoside derivatives of the present invention are characterized by the formula; ##STR1## Organophosphorus dinucleoside derivatives prepared from the synthesis methods provided in the present invention are characterized by the formula; ##STR2##

专利号:US-5856465-A
优先权日:1996-05-24
标 题:Compositions and methods for the synthesis of chirally pure organophosphorus nucleoside derivatives
发明人：STEC WOJCIECH JACEK; WOZNIAK LUCYNA
权利人:POLSKA AKAD NAUK CENTRUM
摘要:Methods for the stereospecific synthesis of chirally pure organophosphorus dinucleotide derivatives and nucleoside monomer synthons used in their synthesis are provided. These methods allow for conversion of nucleoside intermediates of unchosen sense of P-chirality to nucleoside monomer synthons of chosen sense of P-chirality. Also provided are novel nucleoside intermediates useful in such methods.

专利号:EP-0850248-B1
优先权日:1995-09-01
标 题 :Compositions and methods for the synthesis of organophosphorus derivatives
发明人：STEC WOJCIECH J; WOZNIAK LUCYNA
权利人:POLSKA AKAD NAUK CENTRUM
摘要:Methods for the stereospecific synthesis of chirally pure organophosphorus dinucleotide derivatives and nucleoside monomer synthons used in their synthesis are provided. These methods allow for conversion of nucleoside intermediates of unchosen sense of P-chirality to nucleoside monomer synthons of chosen sense of P-chirality. Also provided are novel nucleoside intermediates useful in such methods.

专利号:US-6407223-B1
优先权日:1997-04-25
标 题 :Process for the synthesis of modified P-chiral nucleotide analogues
发明人：STEC WOJCIECH J; WOZNIAK LUCYNA A; CHWOROS ARKADIUSZ; PYZOWSKI JAROSLAW
权利人:POLSKA AKADEMIA NAUK CENIRUM B
摘要:The process of the instant invention is drawn to the synthesis of modified P-chiral nucleotide analogues in the form of pure diastereomers possessing preselected configuration at the P-atom. Oligonucleotides prepared by the method of the invention containing P-chiral compounds have enhanced hybridization and transporting properties.

专利号:US-4835319-A
优先权日:1987-11-09
标题:Process for the manufacture of 1,4-bis(4-phenoxybenzoyl)benzene with a zeolite catalyst
发明人：CORBIN DAVID R; KUMPINSKY ENIO; VIDAL ANTONIO
权利人:DU PONT
摘要:1,4-Bis(4-phenoxybenzoyl)benzene is made in a heterogeneous system by a reaction of diphenyl ether with 1,4-benzenedicarbonyl chloride at 190°-250° C. in the presence of a zeolite catalyst having a ring structure containing 12 oxygen atoms, which can be either an activated zeolite in hydrogen form or an iron-exchanged zeolite, which zeolite can be readily separated from the hot liquid phase in the reaction mixture. The mole ratio of diphenyl ether to 1,4-dicarbonyl chloride, when the catalyst is in hydrogen form, is about 50-80:1; when the catalyst is in iron-exhcanged form, it is about 10-50:1, and the weight ratio of 1,4-benzenedicarbonyl chloride to zeolite in hydrogen form is 3:1 to 1:2, while the ratio of 1,4-benzenedicarbonyl chloride to zeolite in iron-exchanged form is 10:1 to 1:32. The product readily crystallizes in a high state of purity from the cooled solution. 1,4-Bis(4-phenoxybenzoyl)benzene is a vaulable intermediate in the synthesis of polyetherketone resins.

专利号:US-2007276139-A1
优先权日:2004-02-10
标题:Substituted Pixyl Protecting Groups for Oligonucleotide Synthesis
发明人：SONG QUANLAI; KHAMMUNGKHUNE SAK; ROSS BRUCE S; GRIFFEY RICHARD H
权利人:SONG QUANLAI; KHAMMUNGKHUNE SAK; ROSS BRUCE S; GRIFFEY RICHARD H
摘要:The present invention describes an improved hydroxyl protecting group of formula (1), wherein R 2 and R 7 are specified substituents and Q is O, S, NR 10 or N(Câ•?O)R 10 .