A highly selective sp3 C–N cleavage of tertiary anilines was achieved using the TBN/TEMPO catalyst system. When N,N-diaklylanilines (alkyl, benzyl) were employed, the N–CH3 bond was selectively cleaved via radical C–Hactivation. Moreover, when the allyl group was installed, totally reverse selectivity was observed. It is worth noting that the solvent effect is also crucial to obtain high reaction
SHEVCHUK, A. S.;PAVELKO, N. V.;SHEIN, V. D.;KURAPIN, A. V., OSNOV. ORGAN. SINTEZ I NEFTEXIMIYA, YAROSLAVL, 1983, N 18, 53-57
作者:SHEVCHUK, A. S.、PAVELKO, N. V.、SHEIN, V. D.、KURAPIN, A. V.
DOI:——
日期:——
US4090997A
申请人:——
公开号:US4090997A
公开(公告)日:1978-05-23
US4166169A
申请人:——
公开号:US4166169A
公开(公告)日:1979-08-28
[EN] COMPOSITION<br/>[FR] COMPOSITION
申请人:ASS OCTEL
公开号:WO2005087901A2
公开(公告)日:2005-09-22
The present invention provides a fuel additive composition comprising (i) at least one primary antiknock component selected from (a) iron or an iron compound; (b) lead or a lead compound; (c) manganese or manganese compound; and (d) a metal selected from rare earth metals, lithium, nickel, and thallium or a compound comprising a metal selected from rare earth metals, lithium, nickel, and thallium; (ii) at least one secondary antiknock component selected from (a) oxyhydrocarbyl compounds; and (b) nitrohydrocarbyl compounds; (iii) at least one of (a) a sulphur passivating agent, (b) a material capable of preventing and/or inhibiting valve seat recession of an internal combustion engine.