专利号:US-11220513-B2 优先权日:2015-04-30 标题:Chromium-mediated coupling and application to the synthesis of halichondrins 发明人:KISHI YOSHITO; YAN WUMING; LI JINGWEI; LI ZHANJIE; YAHATA KENZO 权利人:HARVARD COLLEGE 摘要:The present invention provides unified synthesis of the C1-C19 building blocks of halichondrins and analogs thereof using selective coupling of poly-halogenated nucleophiles in chromium-mediated coupling reactions. The present invention also provides a practical and efficient synthesis of C20-C38 building blocks of halichondrins and analogs thereof. Also provided herein are general methods of selective activation and coupling of poly-halogenated analogs with an aldehyde. The provided coupling reactions are selective for halo-enone and halo-acetylenic ketal over vinyl halide and halide attached to a sp hybridized carbon. The provided efficient selective coupling reactions can allow easy access to the C1-C19 building blocks and C20-C38 building blocks of halichondrins and analogs thereof with limited or no purification or separation of the intermediates.
专利号:US-4476252-A 优先权日:1982-11-06 标题 :Process for the synthesis of polymers with laterally linked polyoxyalkylene chains and their use for the production of polyurethanes 发明人:ESSELBORN EBERHARD; FOCK JUERGEN 权利人:GOLDSCHMIDT AG TH 摘要:Process for the synthesis of polymers with laterally linked polyoxyalkylene chains by the free radical polymerization of polyoxyalkylene ethers with olefinic double bonds with other vinyl compounds, capable of copolymerizing wherein the polyoxyalkylene ethers of allyl and/or methallyl alcohol are copolymerized in a known manner with vinyl esters of lower carboxylic acids or mixtures of vinyl esters of lower carboxylic acids with up to 50 mole percent of esters of acrylic or methacrylic acid. The compounds can be used to advantage as reaction components having hydroxyl groups in the production of polyurethanes. In particular, they improve the mechanical properties of polyurethane foams, such as, for example, their compression hardness.
专利号:US-2005240037-A1 优先权日:2002-07-23 标 题 :Method for the continuous intermediate separation of the solvent used in the oxirane synthesis with no coupling product 发明人:BASSLER PETER; GOBBEL HANS-GEORG; TELES JOAQUIN H; RUDOLF PETER 权利人:BASF AG 摘要:Process for the continuously operated distillation of the solvent used in the synthesis of an oxirane by reaction of a hydroperoxide with an organic compound, wherein the mixture comprising the solvent which is obtained in the synthesis and subsequent work-up is separated in a dividing wall column into a low-boiling fraction, an intermediate-boiling fraction and a high-boiling fraction and the solvent is taken off as intermediate-boiling fraction from the side offtake of the column.
专利号:US-12006540-B2 优先权日:2015-09-28 标题:Synthesis of novel disulfide linker based nucleotides as reversible terminators for DNA sequencing by synthesis 发明人:JU JINGYUE; LI XIAOXU; CHEN XIN; LI ZENGMIN; KUMAR SHIV; SHI SHUNDI; GUO CHENG; REN JIANYI; HSIEH MIN-KANG; CHIEN MINCHEN; TAO CHUANJUAN; ERTURK ECE; KALACHIKOV SERGEY; RUSSO JAMES J 权利人:UNIV COLUMBIA 摘要:Disclosed herein, inter alia, are compounds, compositions, and methods of use thereof in the sequencing of a nucleic acid.
专利号:US-5260402-A 优先权日:1990-06-21 标 题 :Curable organopolysiloxanes with oxyalkylene ether groups linked through SiOC groups, their synthesis and use 发明人:WEITEMEYER CHRISTIAN; DOEHLER HARDI 权利人:GOLDSCHMIDT AG TH 摘要:Curable organopolysiloxanes are disclosed which contain oxyalkylene ether groups linked through SiOC groups; the oxyalkylene ether groups have the formula ##STR1## A method for the synthesis of these compounds, as well as their use as casting compositions, adhesive coating agents and modifying additives for compounds which can be cured cationically, by free radicals, or by high-energy radiation are also disclosed.
专利号:US-6087512-A 优先权日:1996-09-18 标题:Process for preparation of glycidyl ether 发明人:FURUKAWA YOSHIRO; KITAORI KAZUHIRO; YANAGIMOTO TETSUYA; MIKAMI MASAFUMI; YOSHIMOTO HIROSHI; OTERA JUNZO 权利人:DAISO CO LTD 摘要:A process for preparation of a glycidyl ether which is characrelized in reacting an epoxy compound of the formula ##STR1## wherein X is halogen or sulfonyloxy in the presence of a fluoride salt, with an alcohol. According to the above method, glycigyl ethers or their optically active compounds important as intermediates for synthesis of medicines are easily obtained in good yield and especially the optically active compounds are obtained with highly optical purity.
参考标题:Convenient Methods For The Synthesis Of A Library Of Hemilabile Phosphines 作者:M. Jiménez,Jesús Pérez-Torrente,M. Bartolomé,Luis Oro |发布日期:2009.6 摘要:A Series Of Novel Functionalized Phosphines Of HemiLabile Character, R2P(Ch2)Nz, Have Been Prepared From DiarylPhosphines Using Several Synthetic Methodologies. The Synthetic Methods Include The Alkylation Of Lithium Diarylphosphide Or (DiArylphosphino)Borane Adducts With Functionalized Halogenoalkanes, X(Ch2)Nz, And The Photochemical Hydrophosphination Of Suitable Functionalized Allyl Or Vinyl
合成参考文献
摘要:Snaith, J. S., Science of Synthesis Knowledge Updates, (2011) 2, 241. 摘要:Bubnov, Yu. N.; Kolomnikova, G. D., Science of Synthesis Knowledge Updates, (2012) 3, 257. 摘要:Stankevič, M.; Pietrusiewicz, K. M., Science of Synthesis Knowledge Updates, (2013) 2, 350. 摘要:Sinha, A. K.; Singh, R., Science of Synthesis, (2021) , 492. 摘要:Sinha, A. K.; Singh, R., Science of Synthesis, (2021) , 504.