Phosphoramidate Tantalum Complexes for Room-Temperature CH Functionalization: Hydroaminoalkylation Catalysis
作者:Pierre Garcia、Ying Yin Lau、Mitchell R. Perry、Laurel L. Schafer
DOI:10.1002/anie.201304153
日期:2013.8.26
A cooled reaction: Phosphoramidate–ClTaMe3 complexes promote the first example of room‐temperature hydroaminoalkylation catalysis. This reaction can be realized under solvent‐free conditions and with challenging substrates such as styrenes and dialkyl amines. When using a vinylsilane substrate, for the first time the linear regioisomer is obtained preferentially using a Group 5 metal. TBS=tert‐butyldimethylsilyl
Evaluation and Development of Methodologies for the Synthesis of Thiophosphinic Acids
作者:Karen R. Winters、Jean-Luc Montchamp
DOI:10.1021/acs.joc.0c01151
日期:2020.11.20
thiophosphinic acids are reported. Ultimately, two major approaches were selected: (1) the Stec reaction of phosphorus amides with carbon disulfide; and (2) the one-potsynthesis of thiophosphorus acidsfrom H-phosphinates, an organometallic nucleophile, and quenching with elemental sulfur. An application to the preparation of a potential chiral phosphorus organocatalyst is also reported.
硫代磷酸R 1 R 2 P(S)OH构成一类重要的有机磷化合物,如果R 1 ≠R 2,则磷原子本质上是手性的。与旨在制备手性硫代磷酸的项目有关,考虑了各种可用的文献方法,但是很少有适合无味试剂的要求。在此,报道了我们关于硫代次膦酸合成的研究结果。最终,选择了两种主要方法:(1)磷酰胺与二硫化碳的Stec反应;(2)由H一锅合成硫代磷酸-次膦酸酯,一种有机金属亲核试剂,并用元素硫淬灭。还报道了在制备潜在的手性磷有机催化剂中的应用。
PYRIDONE DERIVATIVE HAVING INTEGRASE INHIBITORY ACTIVITY
申请人:Hattori Kazunari
公开号:US20130096109A1
公开(公告)日:2013-04-18
An object of the present invention is to provide a novel integrase inhibitor. The present invention relates to a novel compound having an antiviral effect, more specifically, a pyridone derivative having HIV integrase inhibitory activity, and a medicament containing the same, in particular, an anti-HIV agent. The compound of the present invention has integrase inhibitory activity and/or cell proliferation inhibitory activity against viruses, in particular, HIV and drug-resistant strains thereof. Thus, the compound is useful in preventing or treating various diseases, viral infections (for example, AIDS), and the like in which integrase participates.
REACTION OF SULFENAMIDES WITH DI-ALKYL AND TRIALKYL PHOSPHITES.AN EFFICIENT SYNTHESIS OF PHOSPHORAMIDATES BY UNUSUAL SUBSTITUTION AT S–N BOND IN (2-BENZOTHIAZOLYL)SULFENAMIDES
作者:Sigeru Torii、Noboru Sayo、Hideo Tanaka
DOI:10.1246/cl.1980.695
日期:1980.6.5
Regioselective attack of the trivalent phosphorus atom of dialkyl and trialkyl phosphites on either nitrogen or sulfur atom of sulfenamides has been found. The reaction of phenylsulfenamides with dialkyl phosphites yielded phosphorothiolates, whereas the treatment of (2-benzothiazolyl)sulfenamides with dialkyl and trialkyl phosphites gave phosphoramidates in excellent yields.
Mono, bis, and tris(phosphoramidate) titanium complexes: synthesis, structure, and reactivity investigations
作者:Mitchell R. Perry、Damon J. Gilmour、Laurel L. Schafer
DOI:10.1039/c9dt00911f
日期:——
mono(phosphoramidate)tris(dimethylamido) complex. The first solid-state-molecular structure of a mono-ligated 1,3-N,O chelated complex of titanium is reported and compared to the respective bis- and tris-analogues. These complexes were screened for hydroaminoalkylation activity between secondary amines and terminal alkenes and the intramolecular hydroamination of a terminal aminoalkene. Mono(phosphoramidate)tris(dimethylamido)
报道了一系列带有二甲基酰胺基配体的各种取代的氨基磷酸钛钛配合物。芳基取代的配体赋予系统结晶性,并允许通过X射线晶体学阐明分子结构。使用可变温度1 H和31 P NMR光谱分离并表征了固态和溶液中的高级取代的配合物,包括三(氨基甲酸酯)单(二甲基酰胺基)配合物。相对于酰胺酸酯和脲酸酯配体,该配体系统具有的空间体积允许进入单(氨基磷酸酯)三(二甲基氨基)络合物。单连接的1,3- N,O的第一固态分子结构报告了钛的螯合复合物,并将其与各自的二和三类似物进行比较。筛选这些配合物在仲胺和末端烯烃之间的氢氨基烷基化活性以及末端氨基烯烃的分子内加氢胺化。原位筛选单(氨基磷酸酯)三(二甲基氨基)复合物,发现它们比各自的双(N,O)-螯合类似物具有更高的活性。这些络合物的阐明使得可以与早期过渡金属的其他N,O-螯合物直接比较,特别是在它们的加氢氨基烷基化和加氢胺化反应性方面。