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Peterson-type olefination

http://ntur.lib.ntu.edu.tw/bitstream/246246/172047/1/44.pdf Web1. dec 2003 · Homo-Peterson Reaction Vinylogous Peterson Olefination Tandem Reactions and One-Pot Processes Involving the Peterson Reaction The Germanium, Tin, and Lead Versions of the Peterson Reaction Synthesis of Carbon–Heteroatom Double-Bond Compounds by Peterson-Type Reactions Conclusion Citing Literature

Peterson olefination 265 Publications 3964 Citations Top …

Web10. jan 2014 · An operationally simple, inexpensive, and rapid route for the olefination of a wide array of trifluoromethyl ketones to yield 3,3,3-trifluoromethylpropenes is reported. Using a Peterson olefination approach, the reaction gives good to excellent yields of the alkene products and can be performed without purification of the β-hydroxysilyl intermediate. … WebInterestingly, this protocol confirms that the B–O elimination is faster than the analogous Si–O Peterson-type elimination. 21. Scheme 14 Boron-Wittig between HC(Bpin) 2 (SiMe 3) and cyclohexanone derivatives with LiTMP at rt. ... This olefination has also been applied to aldehydes, although to a lesser extent and with overall lower levels ... screen printing california https://laurrakamadre.com

Peterson olefination - Wikipedia

Web27. nov 2024 · Olefination, Purification Abstract A mild and facile Peterson olefination has … WebVinylogous Peterson Olefination. Tandem Reactions and One‐Pot Processes Involving the Peterson Reaction. The Germanium, Tin, and Lead Versions of the Peterson Reaction. Synthesis of Carbon–Heteroatom Double‐Bond Compounds by Peterson‐Type Reactions. Conclusion. Citing Literature. WebDie Peterson-Olefinierung (auch Peterson-Reaktion oder Peterson-Eliminierung, nach … screen printing calgary

Peterson Olefination - an overview ScienceDirect Topics

Category:Selective deprotection of acetals with Me3SiCH2MgCl. Peterson-type …

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Peterson-type olefination

Wittig Reaction - Organic Chemistry

The Peterson olefination (also called the Peterson reaction) is the chemical reaction of α-silyl carbanions (1 in diagram below) with ketones (or aldehydes) to form a β-hydroxysilane (2) which eliminates to form alkenes (3). Several reviews have been published. WebOlefination Reaction - University of Chicago

Peterson-type olefination

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WebWhile this important reaction class is among the most important and most widely used in organic chemistry, this is the first book to summarize the many different olefination methods, including: * Wittig reaction * Peterson reaction * Julia olefination * Utilizing the Tebbe and related reagents * Low-valent chromium, zinc or titanium mediated olefination … WebThe strong affinity of the oxygen anion for the silyl moiety is emphasised when the …

WebPeterson olefination has been used by the research groups of both Märkl and Yoshifuji in … Web10. apr 1987 · O-Ethyl-C,O-bis(trimethylsilyl)ketene acetal behaves as an active C 2 chain-lenghtening unit when treated with α,β-unsaturated ketones yielding δ-keto-α-trimethylsilylesters with the aid of titanium tetrachloride. The products readily form α-ylidene-δ-lactone derivatives after selective reduction of the ketone carbonyl and …

WebAs the outcome of acid or base-induced elimination is different, the Peterson Olefination offers the possibility of improving the yield of the desired alkene stereoisomer by careful separation of the two diastereomeric p- hydroxy silanes and subsequently performing two different eliminations. [Pg.187] Web1. dec 2003 · Homo-Peterson Reaction. Vinylogous Peterson Olefination. Tandem …

Web28. júl 2000 · Peterson-type olefination of acetals J Org Chem. 2000 Jul 28;65(15):4694-7. doi: 10.1021/jo000317h. Authors CC Chiang 1 , YH Chen, YT Hsieh, TY Luh. Affiliation 1 Department of Chemistry, National Taiwan University, Taipei. PMID: 10959876 DOI: 10.1021 ...

WebAbstract Rather than the usual cyclopropanation and Peterson-type olefination, conditions for a novel elimination reaction from the adduct of dimethylsulfonium methylide and 2-silylalkylidene/arylidene malonate/cyanoacetate/phosphonoacetate leading to geminally substituted vinyl silanes or styrenes, respectively, have been established. screen printing cabinetWeb7. júl 2014 · Peterson烯烃合成 (Peterson Olefination) α-硅基碳负离子与醛或者酮羰基亲核加成形成的中间体在酸性或者碱性条件下脱去硅烷醇，总的来说就是一个羰基转换成烯烃的反应。. 硅烷醇的离去是具有立体特异性的， 酸性条件和碱性条件得到的立体构型是互逆的 … screen printing cakeWebPeterson Olefination in an Ionic Liquid: a Greener Approach A Synthetic Route to … screen printing cape townWeb1. jan 2002 · Peterson olefination January 2002 Authors: Jack Li Bristol-Myers Squibb Abstract No full-text available Recent Studies on the Peterson Olefination Reaction Article Nov 1991 SYNLETT Anthony... screen printing cardboard boxesWebThe Julia olefination (also known as the Julia–Lythgoe olefination) is the chemical … screen printing canvas bagsWeb8. okt 2016 · A Peterson-type olefination: Which gives a vinyl phosphine (sp.), which may … screen printing careerWeb15. okt 2004 · The Peterson olefination reaction provides a useful method for the … screen printing capalaba