CAS: 2129-89-7; Methyldiphenylphosphine Oxide

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CAS号4020-99-9 二苯基甲氧基膦 | CAS号4559-70-0 二苯基磷氧 | CAS号74-88-4 碘甲烷 | CAS号591-50-4 碘苯 | CAS号19315-13-0 甲基苯基-氧磷 | CAS号2065-66-9 甲基三苯基碘化 | CAS号1486-28-8 二苯基甲基膦 | CAS号1831-63-6 Acetic acid,2-(... | CAS号59983-62-9 lithium,methani... | CAS号611-74-5 N,N-二甲基苯甲酰胺 | CAS号14580-99-5 acetic acid,3-d... | CAS号4141-48-4 烯丙基联苯氧化膦 | CAS号4271-13-0 甲苯基膦酸 | CAS号20684-76-8 4-((DIPHENYLPHO... | CAS号21955-55-5 benzyl-methyl-d... | CAS号1831-63-6 Acetic acid,2-(... | CAS号1153-05-5 三苯胂氧化物 | CAS号1486-28-8 二苯基甲基膦 | CAS号1017-88-5 二甲基二苯基碘化鏻 | CAS号35078-75-2 1-diphenylphosp...

二苯基甲氧基膦置于三甲基溴硅烷体系中,化学反应 18.0H,以96%的收率获得甲基二苯基氧化膦
参考文献:三甲基甲硅烷基卤化物促进michaelis-Arbuzov重排.
标题:三甲基甲硅烷基卤化物促进michaelis-Arbuzov重排.
摘要:[反应:见正文]我们描述了一种新的,直接的,易于操作的方法,可实现前所未有的三甲基甲硅烷基卤化物催化的michaelis-Arbuzov样重排.该重排在室温至80oc的温度下发生,并且不需要添加任何烷基卤.探索了这种新反应的范围和局限性及其机理.
Doi:10.1021/ol0342913

专利信息

专利号:US-3742080-A
优先权日:1969-04-11
标 题 :Rhodium based catalysts for the synthesis of 1,4-dienes
发明人：SU A
权利人:DU PONT
摘要:Improved catalysts are provided for the synthesis of 1,4-dienes from Alpha -monoolefins and conjugated dienes. The catalysts are rhodium (III) salts in combination with amides, phosphoramides, phosphine oxides, or water. The improved catalysts allow control of the trans-cis ratio of the 1,4-diene formed and are operable at useful rates in a wide range of solvent systems, both protonic and aprotic.

专利号:US-12024537-B2
优先权日:2018-05-31
标题 :Compositions and methods for chemical synthesis
发明人：SEIFERT COLE
权利人:SEDERMA SA
摘要:The disclosure relates to chemical compositions that can include anchor molecules for chemical synthesis. GAP anchor molecules can include GAP constituents, linker constituents, and spacer constituents. Anchor molecules can be used to synthetically manufacture peptides. A novel method of solution-phase peptide synthesis is also disclosed that utilizes novel group-assisted purification protecting groups to facilitate efficient, scalable chemistry to synthetically manufacture peptides.

专利号:US-11827660-B2
优先权日:2019-02-01
标题 :Synthesis strategy for gap protecting group
发明人：SEIFERT COLE
权利人:SEDERMA SA
摘要:The present invention relates to a novel synthesis method to form particular molecules. These molecules have multiple uses, most notably in the field of protecting groups used throughout organic and synthetic chemistry. The disclosed method is safer, more cost- and time-effective, and more amenable to large scale production than those currently known in the art. The protecting groups synthesized are useful in GAP peptide synthesis.

专利号:US-8853410-B2
优先权日:2009-04-30
标 题:Process for preparing substituted isoxazoline compounds and their precursors
发明人：RACK MICHAEL; KOERBER KARSTEN; KAISER FLORIAN
权利人:RACK MICHAEL; KOERBER KARSTEN; KAISER FLORIAN; BASF SE
摘要:The present invention relates to a new method of preparing halogenated styrene compounds of formula (VIII) n nwhich are precursors in the process of synthesis of substituted isoxazoline compounds of formula (I)n n nwherein R 1 to R 5 , R 8 and R 9 are described as in the description.n n The present invention relates further to the synthesis of compounds of formula (I) starting from acetophenones. The desired styrenes of formula are prepared from the appropriate substituted acetophenone. Asides bromo anilines react with formoxime. Obtained oximes undergo a cycloaddition with the styrenes and give isoxazolines. Compounds of formula (I) can then be prepared in a palladium catalyzed carbonylative amination reaction of the isoxazolines.

专利号:US-10981921-B2
优先权日:2015-11-11
标题:Fragment synthesis of substituted cyclic peptides

专利号:US-2020361944-A1
优先权日:2015-11-11
标题 :Fragment synthesis of cyclic peptides