Nitro-Power! An exceptionally general electrophilicamination of zinc organyl compounds was developed, and yields alkylated aromatic aminoboranes from commercially available nitroarenes. The partially reduced nitro group is directly engaged as an electrophilic nitrogen intermediate. The aminoboranes were reacted with electrophiles, thereby incorporating two different substituents at the N atom of the
A New Phase Transfer Catalyst (PTC) for N-Alkylation Reactions
作者:S. C. Bisarya、Rama Rao
DOI:10.1080/00397919208021146
日期:1992.12
Abstract Hexamethylene tetramine bromide HMTA+Br− - a newphasetransfercatalyst is reported for N-Alkylation reactions of industrially important anilides.
Room Temperature Cu-Catalyzed <i>N</i>-Arylation of Oxazolidinones and Amides with (Hetero)Aryl Iodides
作者:Subhajit Bhunia、Subhadip De、Dawei Ma
DOI:10.1021/acs.orglett.2c00122
日期:2022.2.11
an apposite promoter for the Cu-catalyzed N-arylation of oxazolidinones and primary and secondary amides with (hetero)aryliodides at room temperature. Excellent chemoselectivity reached between aryliodides and arylbromides, and a wide range of functional groups tolerated the reaction conditions, which led to the formation of greatly diverse N-arylation products.
N , N '-Bis(pyridin-2-ylmethyl)oxalamide (BPMO) 被发现是 Cu 催化的恶唑烷酮和伯胺和仲胺在室温下与(杂)芳基碘化物的N-芳基化的合适促进剂。芳基碘化物和芳基溴化物之间达到了优异的化学选择性,并且广泛的官能团可以耐受反应条件,从而导致形成多种多样的N-芳基化产物。
Selectfluor-induced C(sp<sup>2</sup>)–O coupling reaction of <i>N</i>-substituted anilines with hydroxylamine derivatives
作者:Bin Sun、Shi Yin、Xiaohui Zhuang、Can Jin、Weike Su
DOI:10.1039/c8ob01348a
日期:——
N-hydroxyphthalimide or N-hydroxymaleimide without any metal catalyst. A variety of N-aryloxyimide derivatives were prepared from N-acyl or sulfonyl anilines in moderate to excellent yields with good functional-group tolerance under mild conditions, which are of great interest in the field of phenol or benzofuran derivative synthesis. Besides, the method is effective on the gram scale, which highlights the practicality
Free Radical Cyclization Reactions of Alkylsulfonyl and Alkylthio Substituted Aromatic Amide Derivatives
作者:Yi-Lung Wu、Che-Ping Chuang、Pey-Yun Lin
DOI:10.1016/s0040-4020(00)00580-9
日期:2000.8
Free radical cyclization reactions of alkylsulfonyl and alkylthio substitutedaromatic amide derivatives are described. Carbon radicals can be generated efficiently from the sulfonyl radical induced reaction of allylsulfones or the oxidation of carbonyl compounds with manganese(III) acetate. These radicals undergo either 6-membered or 5-membered ring cyclization onto the aromatic ring effectively and