Synthesis of Sterically Hindered Secondary and Tertiary Alkyl(Aryl)Phosphines
作者:Yu. A. Veits、E. A. Neganova、O. S. Vinogradova
DOI:10.1007/s11176-005-0200-7
日期:2005.2
coupling of silylphosphines with 2-halobenzenecarboxylates or 2-halophenyl ethers, catalyzed with zero-valent palladium complexes can not be used as a procedure for preparing sterically hindered tertiaryphosphines. The latter compounds can be successfully prepared by means of phosphorylation of corresponding o -lithiated derivatives.
Synthesis of o-Diorganylphosphino-substituted Benzoic Acids and Their Derivatives
作者:Yu. A. Veits、E. G. Neganova、O. S. Vinogradova
DOI:10.1007/s11176-005-0368-x
日期:2005.7
o-Substituted dialkyl- and alkylphenylphosphinobenzoic acids, as well as their esters, nitriles, and amides, including those containing three different substituents on the phosphorus atom, were prepared for the first time by two different synthetic procedures. The most general procedure involves metal-halogen exchange in bromo- and iodoarenes, followed by phosphorylation of the resulting lithium derivatives.
o 取代的二烷基和烷基苯基膦苯甲酸及其酯类、腈类和酰胺类,包括那些在磷原子上含有三个不同取代基的物质,首次通过两种不同的合成程序制备出来。最一般的程序是在溴烯烃和碘烯烃中进行金属卤素交换,然后对得到的锂衍生物进行磷酸化。
Iron Catalysis of C(sp<sup>3</sup>)–H Azidation Using a Heteroarene Radical Cation Strategy
作者:A. Young Ji、Annaram Thirupathi、Joon Young Hwang、Yuri Kim、Gyuri Han、Kwang-Hyun Ahn、Kyungtae Kang、Eun Joo Kang
DOI:10.1021/acs.orglett.3c00330
日期:2023.3.10
The FeIII(phen)3 catalysis of the benzylicC(sp3)–Hazidation of indoles has been investigated. The Fe(III) complex can selectively oxidize indoles to form arene radical cations, which are transformed into benzylicC(sp3) radical intermediates. This strategy exhibits a difference in reactivity between N-heteroarenes and benzene, which is difficult to achieve via direct hydrogen abstraction approaches
Protection of Amino and Hydroxy Groups in the Ullmann Reaction and Related Organocopper Couplings
作者:F. D. KING、D. R. M. WALTON
DOI:10.1055/s-1976-23952
日期:——
Reaction of vanadocene and vanadocene dichloride with ortho-iodobenzoic acid
作者:A. S. Gordetsov、S. V. Zimina、V. F. Ur’yash、E. M. Moseeva
DOI:10.1134/s1070363213020114
日期:2013.2
At the interaction of bis (eta(5)-cyclopentadienyl)vanadium with iodobenzoic acid or trimethylsilyl o-iodobenzoate in toluene depending on the ratio of the initial reagents bis(eta(5)-cyclopentadienyl)vanadium(o-iodobenzoate) or eta(5)-cyclopentadienylvanadium-bis-o-iodobenzoate were obtained in high yields. The latter was also formed in the reaction of bis(eta(5)-cyclopentadiene)vanadium dihloride with trimethylsilyl o-iodobenzoate. DOI: 10.1134/S1070363213020114