专利号:WO-2023102600-A1 优先权日:2021-12-06 标题:Synthesis of amphiphilic block copolymers and polymeric nanofibers produced therefrom 发明人:ZETTERLUND PER B; ISHIZUKA FUMI; KIM HYUN JIN; CHATANI SHUNSUKE; NIINO HIROSHI 权利人:NEWSOUTH INNOVATIONS PTY LTD 摘要:The present disclosure relates to the field of synthesis of block copolymers, and polymeric nanofibers having a core-shell morphology produced therefrom. The present disclosure relates to the field of synthesis of block copolymers where one block is more hydrophobic than the other block and is a different composition. The disclosure also relates to uses of these polymeric nanofibers in various applications, such as reinforcing a polymeric matrix and for coatings applications.
专利号:US-4140708-A 优先权日:1975-10-16 标 题 :Asymmetric synthesis of optically active prostaglandins 发明人:CHADHA NARESH K; PARTRIDGE JR JOHN J; USKOKOVIC MILAN R 权利人:HOFFMANN LA ROCHE 摘要:An asymmetric synthesis of optically active prostaglandin F 2 α from cyclopentadiene including intermediates in this synthesis.
专利号:US-3933892-A 优先权日:1973-02-12 标题 :Asymmetric synthesis of optically active prostaglandins 发明人:CHADHA NARESH KUMAR; PARTRIDGE JR JOHN JOSEPH; USKOKOVIC MILAN RADOJE 权利人:HOFFMANN LA ROCHE 摘要:An asymmetric synthesis of optically active prostaglandin F 2 .sub.α from cyclopentadiene including intermediates in this synthesis.
专利号:US-4879389-A 优先权日:1986-06-25 标题:Chiral phosphinopyrrolidine compounds and their use for asymmetric synthesis of optically active compounds 发明人:ACHIWA KAZUO 权利人:ACHIWA KAZUO 摘要:New chiral phosphinopyrrolidine compounds of the general formula: (I) or (I') wherein R1 is a hydrogen atom, -COR, -COOR, -CONHR or -SO2-R where R is an alkyl or aryl group, R2 and R3 each represents independently an aryl group which may have a substituent or substituents, and R4 and R5 each represents independently an aliphatic or cycloaliphatic hydrocarbyl group which may have a substituent or substituents, as well as the use of these compounds as ligand for a metal complex catalyst for asymmetric synthesis of optically active compounds. The new chiral phosphinopyrrolidine compounds are useful ligands which attain both of high optical yield and high reaction efficiency in catalytic asymmetric reduction.
专利号:US-10829792-B2 优先权日:2017-03-21 标 题 :Biocatalytic synthesis of strained carbocycles 发明人:CHEN KAI; HUANG XIONGYI; KAN S B JENNIFER 权利人:CALIFORNIA INST OF TECHN 摘要:Provided herein are methods for producing products containing strained carbocycles, such as cyclopropene moieties and/or bicyclobutane moieties. The methods include combining an alkyne and a carbene precursor in the presence of a heme protein, e.g., a cytochrome P450, under conditions sufficient to form the strained carbocycle. Reaction mixtures for producing strained carbocycles are also described, as well as whole-cell catalysts comprising heme proteins and variants thereof for forming cyclopropenes, bicyclobutanes, and related products.
专利号:US-5488131-A 优先权日:1994-03-23 标题:Synthesis of compounds with predetermined chirality 发明人:MYERS ANDREW G 权利人:CALIFORNIA INST OF TECHN 摘要:A method for synthesizing enantiomerically enriched chemical intermediates with predetermined chirality is described. The method comprises formation of a pseudoephedrine amide, followed by stereoselective alkylation at the alpha carbon. The chiral auxiliary can then be cleaved off, affording chiral end products useful for further transformations. The enantiomeric enrichment of the chiral end products may exceed 98%, and the chiral auxiliary can be recovered. Novel amides of pseudoephedrine used in this method are also disclosed.