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参考文献:Hydrogenation Of Vitamin B1 And Other Quaternary Thiazoles1
标题:Hydrogenation Of Vitamin B1 And Other Quaternary Thiazoles1
摘要:
DOI:10.1021/ja01278A005
专利信息
专利号:US-11926589-B2
优先权日:2019-07-09
标 题 :Process for the synthesis of non-racemic cyclohexenes
发明人:REISMAN SARAH; ROMBOLA MICHAEL; LADD CAROLYN L; MCLAUGHLIN MARTIN JOHN; ZUEND STEPHAN; GOETZ ROLAND
权利人:BASF CORP; CALIFORNIA INST OF TECHN
摘要:This invention relates to a process for the synthesis of a non-racemic cyclohexene compound of formula (I) by a Diels-Alder reaction of a compound of formula (II) with a compound of formula (III) wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 and Y have the meanings as defined in the description in the presence of a catalyst comprising at least one m-valent metal cation M m+ wherein the metal M is selected from Scandium (Sc), Yttrium (Y), Lanthanum (La), Cerium (Ce), Praseodymium (Pr), Neodymium (Nd), Promethium (Pm), Samarium (Sm), Europium (Eu), Gadolinium 15 (Gd), Terbium (Tb), Dysprosium (Dy), Holmium (Ho), Erbium (Er), Thulium (Tm), Ytterbium (Yb), Lutetium (Lu), Gallium (Ga) and Indium (In), and m is an integer of 1, 2 or 3, and a chiral ligand of the formula (IV) wherein R 10a , R 10b , R 10c , R 10d , R 10a′ , R 10b′ , R 10c′ , R 10d′ , Z and Z′ have the meanings as defined in the description.
专利号:US-2003162992-A1
优先权日:2001-12-14
标 题 :Preparation of intermediates useful in the synthesis of antiviral nucleosides
发明人:WATANABE KYOICHI A; DU JINFA
摘要:The present invention is an efficient process for the manufacture of α-acyloxyacetaldehyde, a key intermediate in the synthesis of 1,3-oxathiolane and 1,3-dioxolane nucleosides.
专利号:US-7879766-B2
优先权日:2006-04-27
标 题 :Method of preparing a sugar chain library and use thereof
发明人:MATSUO ICHIRO; ITO YUKISHIGE
权利人:RIKEN
摘要:The present invention provides methods which enables synthesis of various sugar chains and products obtained by the same. More specifically, the present invention provides protected sugar chain compounds represented by the formula (I) below: n n[wherein R 1 and R 2 are the same or different and each is a linear or branched sugar chain,n S 1 is any sugar residue, S A and S B are the same or different sugar residues, L is a bond or a linear sugar chain, X is absent, or, if present, represents certain group, the sugar residues S A and S B are cleaved by different exoglycosidases, respectively] and libraries thereof, and methods of producing the same; methods of producing a sugar chain compound, which comprises treating the sugar chain compound or library with glycosidase, and glycosidase decomposition products obtained by the same; intermediates for the synthesis of protected sugar chain compounds; reagents and kits; and the like.
专利号:US-11591231-B2
优先权日:2020-11-10
标 题:Organotemplate-free synthesis of a zeolite of ton framework type
发明人:SCHMIDT JOEL EDWARD; OJO ADEOLA FLORENCE; CHEN CONG-YAN
权利人:CHEVRON USA INC
摘要:An organotemplate-free synthetic process for the production of a zeolite of TON framework type structure is provided. The process includes the steps of: (1) preparing a mixture comprising: (a) an alumina-coated silica; (b) a source of an alkali metal; (c) an alcohol; (d) a source of hydroxide ions; (e) seed crystals comprising a zeolitic material having a TON framework type structure; and (f) water; and (2) crystallizing the mixture obtained in step (1).
专利号:WO-2013046138-A1
优先权日:2011-09-27
标 题:Process for the preparation of scopine esters
发明人:CIPOLLONE AMALIA; FATTORI DANIELA; FINCHAM CHRISTOFER INGO
权利人:LUSOCHIMICA SPA
摘要:The present invention relates to a process for the preparation of scopine esters, as intermediates in the synthesis of tiotropium bromide. In particular, it relates to a transesterification process between scopine alcohol and an ester of a carboxyl acid in high yields and under conditions suitable for industrial use.
专利号:US-4061685-A
优先权日:1975-02-07
标题 :Catalytic synthesis of phenols
发明人:WEIGERT FRANK JULIAN
权利人:DU PONT
摘要:A phenol is produced by heating water and a cyclic or acyclic alkane or alkene of 6-10 carbon atoms at a temperature of 350 DEG to 700 DEG C in the presence of a metal oxide catalyst. Exemplary is the heating of water and cyclohexane in a nitrogen atmosphere and in the presence of ZnO/TiO2 to produce phenol.