Process for improving the coefficient of traction and traction drive
申请人:Idemitsu Kosan Co., Ltd.
公开号:US05126065A1
公开(公告)日:1992-06-30
A process for improving the coefficient of traction at high temperatures in a traction drive, and a tranction drive fluid for use therein. This traction drive fluid comprises the hydrogenated product of a dimer, a trimer or a tetramer of norbornanes and/or norbornenes, and exhibits excellent traction performance over a wide temperature range from low temperature to high temperature.
Carbonium ion rearrangements controlled by the presence of a silyl group
作者:Ian Fleming、Shailesh K Patel
DOI:10.1016/s0040-4039(01)92922-3
日期:——
Tertiary alcohols with a λ-silyl group (3) generally undergo a simple carboniumionrearrangement in acid giving a single alkene product (4) with loss of the silyl group.
Epimeric 2-norbornyl cations in the solvolysis of 6-exo- and 6-endo-substituted 2-exo-norbornyl p-toluenesulfonates
作者:Cyril A. Grob、Bettina Günther、Reinhard Hanreich、Adrian Waldner
DOI:10.1016/0040-4039(81)80009-3
日期:1981.1
Solvolysis of 6-exo- and 6-endo-substituted 2-exo-norbornyl tosylates and , respectively, yields identical or different product mixtures depending on the inductive effect of the substituent, indicating that induction involves graded σ-participation.