Direct preparation of benzylic manganese reagents from benzyl halides, sulfonates, and phosphates and their reactions: applications in organic synthesis
作者:YoungSung Suh、Jun-sik Lee、Seoung-Hoi Kim、Reuben D Rieke
DOI:10.1016/s0022-328x(03)00500-x
日期:2003.11
The use of highly active manganese (Mn)*, prepared by the Rieke method, was investigated for the direct preparation of benzylic manganese reagents. The oxidative addition of the highly active manganese to benzylic halides was easily completed under mild conditions. Moreover, benzylic manganese sulfonates and phosphates were prepared by direct oxidative addition of Mn* to the carbon–oxygen bonds of
Electrochemical phosphorylation of arenols and anilines leading to organophosphates and phosphoramidates
作者:Zijian Zhong、Pan Xu、Aihua Zhou
DOI:10.1039/d1ob00779c
日期:——
A practical phosphorylation for generating organophosphates and phosphoramidates via electrochemical dehydrogenative cross-coupling of P(O)H compounds with arenols and anilines is disclosed. This method involves using inorganic iodide salts as both redox catalysts and electrolytes in an undivided cell without the addition of oxidants or bases. A preliminary mechanistic study suggests that radicals
β‐Aryl Nitrile Construction<i>via</i>Palladium‐Catalyzed Decarboxylative Benzylation of α‐Cyano Aliphatic Carboxylate Salts
作者:Rui Shang、Zheng Huang、Xiao Xiao、Xi Lu、Yao Fu、Lei Liu
DOI:10.1002/adsc.201200383
日期:2012.9.17
The palladium‐catalyzed decarboxylative benzylation of α‐cyano aliphatic carboxylatesalts with benzyl electrophiles was discovered. This reaction exhibits good functional group compatibility and proceeds under relatively mild conditions. A diverse range of quaternary, tertiary and secondary β‐aryl nitriles can be conveniently prepared by this method.
Palladium-Catalyzed Benzylation of Heterocyclic Aromatic Compounds
作者:David Lapointe、Keith Fagnou
DOI:10.1021/ol901689q
日期:2009.9.17
Broadly applicable palladium-catalyzed heteroarene benzylation reactions are described with a focus on the most challenging heterocyclic classes under traditional benzylation techniques such as sulfur-containing heterocycles and those bearing functional groups that would be incompatible with reactions requiring Lewis acids and/or strong bases.
Please note the following corrections in the manuscript and Supporting Information: In Scheme 3, footnote a, a reaction condition was omitted. See corrected Scheme 3 below. Footnote d has been added to indicate the use of 0.5 mL of the corresponding alcohols for some substrates. In the Supporting Information (page s-4), the amount of H2O2 used for the reaction in typical procedures A–C was omitted
请注意手稿和支持信息中的以下更正:在方案3的脚注a中,省略了反应条件。请参阅下面的更正方案3。添加了脚注d,以指示对某些底物使用0.5 mL相应的醇。在《支持信息》(第s-4页)中,省略了典型步骤A–C中用于反应的H 2 O 2量。对于典型的步骤A–C,不包括用于少量底物的酒精量。此信息已包含在更正的版本中。a反应条件:1(0.72 mmol),4(2.17 mmol),I 2(10 mol%),H 2 O 2(1当量)基于1 H NMR数据的转化。分离的产率。使用0.5mL的相应的醇。a反应条件:1(0.72mmol),4(2.17mmol),I 2(10mol%),H 2 O 2(1当量)。基于1 H NMR数据的转化。孤立的产量。使用0.5mL的相应醇。更正的支持信息版本。可通过Internet(http://pubs.acs.org)免费获得此材料。这篇文章被2个出版物引用。a反应条件:1(0