Organobis(cuprates): a new class of reagents and method for spiroannelation
作者:Paul A. Wender、Alan W. White
DOI:10.1021/ja00215a035
日期:1988.3
Reaction d'organobiscuprates avec des halogeno-3 cyclohexene- et -cyclopentene-2ones: obtention de cyclohexanones et cyclopentanones spiranes en position 3
反应 d'organobiscuprates avec deshalo-3 cyclohexene-et-cyclopentene-2ones: 获得环己酮和环戊酮螺环在位置 3
Halogenierte Pentan-4-olid-carbonsäuren
作者:Claus D. Weis
DOI:10.1002/hlca.19760590635
日期:——
Halogenated pentane-4-olide carboxylic acids.
卤代戊四醇羧酸。
Magnetic recording medium
申请人:SONY CORPORATION
公开号:EP0463601A2
公开(公告)日:1992-01-02
A magnetic recording medium which comprises a non-magnetic support and a magnetic recording layer formed on the support is described. The magnetic recording medium is made of a dispersion of a magnetic powder in a resin binder which is comprised of a first resin having at least one polar group at a rate of from 0.01 to 10 mmols/g and a glass transition point, Tg, of from -50 to 40°C and a second resin having a polar group in an amount smaller than the first resin and having a glass transition point, Tg', of higher than 40°C and not higher than 200°C.