Direct Access to POP-Type Osmium(II) and Osmium(IV) Complexes: Osmium a Promising Alternative to Ruthenium for the Synthesis of Imines from Alcohols and Amines
作者:Miguel A. Esteruelas、Nicole Honczek、Montserrat Oliván、Enrique Oñate、Marta Valencia
DOI:10.1021/om200290u
日期:2011.5.9
easy and direct access to POP-type osmium(II) and osmium(IV) complexes, including OsH4dbf(PiPr2)2} (dbf(PiPr2)2 = 4,6-bis(diisopropylphosphine)dibenzofuran), is reported. This tetrahydride derivative is an efficient catalyst for the selective formation of imines fromalcohols and amines with liberation of H2, proving that osmium is a promising alternative to ruthenium for catalysis.
轻松直接访问POP型(II)和(IV)络合物,包括OsH 4 dbf(P i Pr 2)2 }(dbf(P i Pr 2)2 = 4,6-双(二异丙基膦) )二苯并呋喃)。该四氢化物衍生物是从醇和胺中选择性释放出H 2选择性地形成亚胺的有效催化剂,证明是钌的理想替代催化剂。
Surface and Biological Activity of Some Prepared Iminium Surfactants Based on Schiff Bases
作者:Ismail Aiad、Mohamed M. EL-Sukkary、Ali El-Deeb、Moshira Y. El-Awady、Samy M. Shaban
DOI:10.1007/s11743-012-1402-8
日期:2013.3
series of novel iminiumsurfactants were prepared through quaternization of different prepared fatty Schiffbases with benzyl chloride. The chemical structures were confirmed using FTIR, 1H‐NMR and mass spectroscopy. The surface properties and biologicalactivity of these surfactants were investigated. The surface parameters including critical micelle concentration (CMC), maximum surface excess (Γmax)