In one pattern,ortho-andpara– products dominate, and themeta-product is an extremely minor byproduct. Substituents which lead to this result are called, “ortho-,para-directors”. Examples of ortho-,para– directors are hydroxyl groups, ethers, amines, alkyl groups, thiols, and...
Halogen-magnesium exchange of m- and p-iodo orbromo-arenes bearing ortho-directing groups through atecomplexes. Jiayi Xu,et al.Tetrahedron Letters,Vol.45 . 2004Xu J,Nareshkumar Jain,Zhihua Sui.Halogen–magnesium exchange of m-and p-iodo or bromo-arenes bearing ortho-directing groups through ...
Xu J,Nareshkumar Jain,Zhihua Sui.Halogen–magnesium exchange of m-and p-iodo or bromo-arenes bearing ortho-directing groups through ate complexes. Tetrahedron Letters . 2004Halogen-magnesium exchange of m- and p-iodo orbromo-arenes bearing ortho-directing groups through atecomplexes. Jiayi Xu,et...
Cheminformethylphenyl)pyrrole." Tetrahedron. 50 (7). pp. 2071-2076. 1994. DOI: 10.1016/S0040-4020(01)85069-9 [4] Faigl, F., Fogassy, K., Thurner, A., Tőke, L. "Competition and co-operation between ortho directing groups and activating...
ortho-, meta-and para-functionalization is tolerated at the arene group which undergoes C-H halogenation. Some modifications are also possible on the 2-(arylsulfonyl) heteroaryl directing groups. A comparison of the halogenation efficiency suggests that bromination is the practical method of choice, ...
Maleczka R E,Shi F,Holmes D,et al.C-Hactivation/borylation/oxidation:a one-pot unified route to meta-substituted phenols bearing ortho-/para-directing groups. Journal of the American Chemical Society . 2003R.E. Maleczka, Jr, F. Shi, D. Holmes and M.R. Smith III, C-H Activation/...
A novelpalladium-catalyzed ortho-C(sp2)–Holefination protocol has been developed by the use ofsulfoxide as the directing group. Importantly, relatively remote coordinationcan be accessed to achieve the orthoolefinationof benzyl, 2-arylethyl, and 3-arylpropenyl sulfoxide substrates, andthe olefinated...
Amongst the powerful directing groups in Ir-catalyzed C-H borylation are N-containing carbocyclic systems. This review covers substrate-directed Ir-catalyzed ortho-C-H borylation of aromatic C(sp2)-H bonds in N-containing carbocyclic compounds, such as anilines, amides, benzyl amines, hydrazones,...
Xu J,Nareshkumar Jain,Zhihua Sui.Halogen–magnesium exchange of m-and p-iodo or bromo-arenes bearing ortho-directing groups through ate complexes. Tetrahedron Letters . 2004Halogen-magnesium exchange of m- and p-iodo orbromo-arenes bearing ortho-directing groups through atecomplexes. Jiayi Xu,et...
A.Dep.THURNERDep.L.Dep.TOKEDep.WileyChemInformethylphenyl)pyrrole." Tetrahedron. 50 (7). pp. 2071-2076. 1994. DOI: 10.1016/S0040-4020(01)85069-9 [4] Faigl, F., Fogassy, K., Thurner, A., Tőke, L. "Competition and co-operation between ortho directing groups and activating...