Rhodium(iii)-catalyzed C–H activation/[4+3] annulation of N-phenoxyacetamides and α,β-unsaturated aldehydes: an efficient route to 1,2-oxazepines at room temperature
nBu4NI-catalyzed cross-coupling of benzyl and allylic compounds with N-hydroxyphthalimide for the synthesis of alkyloxyamines were realized for the first time.
Copper-catalyzed C–O coupling of styrenes with N-hydroxyphthalimide through dihydroxylamination reactions
作者:Xiao-Feng Xia、Su-Li Zhu、Danting Zhang
DOI:10.1016/j.tet.2015.09.040
日期:2015.11
An efficient method of copper-catalyzed 1,2-dihydroxylaminations of alkenes have been demonstrated under air conditions by using PhI(OAc)2 as oxidant to furnish the dioxygenated products in 20–81% yields. This provided an alternative methodology to synthesis of dioxygenated products, which were easily transformed into diols under the reductive conditions. Furthermore, a free-radical addition mechanism
This invention relates to novel 7-thiadiazol-oxyimino-3-cephem and cepham 4-carboxylic acid compounds of high antimicrobial activity.
这项发明涉及具有高抗微生物活性的新型7-噻二唑氧肟基-3-头孢菌素和头孢菌素-4-羧酸化合物。
<i>N</i>-Hydroxyphthalimide (NHPI)/lead tetraacetate reactions with cyclic and acyclic alkenes
作者:Sergiu Coseri
DOI:10.1002/poc.1466
日期:2009.5
strong influence of leadtetraacetate (or CAN) on the NHPI's reactivity, induce two different channels for the reaction pathway, radical and non‐radical, a complex mixture of both saturated and unsaturated diadducts together with the corresponding monoadduct being formed. This behavior will not occur in the case of PINO generation in non‐metallic systems, in this case the reaction pathway proceed exclusively