Hydrophosphination of alkoxyalkenes catalyzed by transition metal complexes
摘要:
Diphenylphosphine adds to alkyl vinyl ethers in the presence of Ni(II) and Pd(II) complexes with a high regioselectivity, leading to exclusive formation of the corresponding Markownikoff adducts which were isolated as 1-alkoxyalkyl(diphenyl)phosphine oxides via oxidation with hydrogen peroxide.
(NHC)NiH-Catalyzed Regiodivergent Cross-Hydroalkenylation of Vinyl Ethers with α-Olefins: Syntheses of 1,2- and 1,3-Disubstituted Allyl Ethers
作者:Weihao Chen、Yang Li、Yang Chen、Chun-Yu Ho
DOI:10.1002/anie.201712693
日期:2018.3.1
(i.e., 1 as acceptor and 2 as donor) was controlled mostly by electronic effects through the catalyst–substrate interaction. Sterically bulkier alkenes (2) were used as preferred donors compared to smaller alkenes. This electronic effect also served as a basis for the first tail‐to‐head cross‐hydroalkenylations of 1 with either a vinyl silane or boronic ester.
乙烯基醚(1)与α-烯烃(2)的交叉氢化烯基化首先通过一组[NHC-Ni(烯丙基)] BAr F(NHC = N-杂环卡宾)催化剂实现。通过使用不同尺寸的NHC,可以高度选择性地获得1,2-和1,3-二取代的烯丙基醚。相比之下,化学选择性(即1为受体,2为施主)主要受催化剂与底物相互作用的电子效应控制。与较小的烯烃相比,在立体上较大的烯烃(2)被用作优选的给体。这种电子效应也作为第一尾-头横hydroalkenylations的基础1 与乙烯基硅烷或硼酸酯。
A convenient one-pot synthesis of polyenic enol ethers
作者:Yen Vo-Quang、Denis Carniato、Liliane Vo-Quang、Fran�ois Le Goffic
DOI:10.1039/c39830001505
日期:——
Diethyl alkoxymethylphosphonates react with unsaturated aldehydes to give polyenicenolethers with a good stereoselectivity.
Synthesis of<i>meso</i>-<sup>13</sup>C and<sup>15</sup>N Labelled Octaethylporphyrin and Optimisation of the "Symmetrical" Route to Octaalkylporphyrins
作者:Annick Rohrer、Rubén Ocampo、Henry J. Callot
DOI:10.1055/s-1994-25605
日期:——
A simplified synthesis of octaalkylporphyrins from aldehydes is described and was used to prepare meso-13C and 15N labelled octaethylporphyrin.
[EN] PIPECOLATE-SULFONAMIDES FOR TREATMENT OF PSYCHIATRIC DISORDERS<br/>[FR] PIPÉCOLATE-SULFONAMIDES POUR LE TRAITEMENT DE TROUBLES PSYCHIATRIQUES
申请人:MAX PLANCK GESELLSCHAFT
公开号:WO2013097947A1
公开(公告)日:2013-07-04
The present invention relates to compounds having a pipecolate sulfonamide scaffold, pharmaceutically acceptable salts of these compounds and pharmaceutical compositions containing at least one of these compounds together with pharmaceutically acceptable carrier, excipient and/or diluents. Said pipecolate sulfonamide compounds can be used for prophylaxis and/or treatment of psychiatric disorders and neurodegenerative diseases, disorders and conditions.
The present invention relates to modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator, compositions thereof, and methods therewith. The present invention also relates to methods of treating ABC transporter mediated diseases using such modulators.