-methylation of phenols with ethyl(iodomethyl)zinc
作者:Erich K. Lehnert、J. Scott Sawyer、Timothy L. Macdonald
DOI:10.1016/s0040-4039(01)93745-1
日期:1989.1
The regioselective -methylation of phenols by generated ethyl(iodomethyl)zinc an internal alkylation process is described.
描述了通过生成的乙基(碘甲基)锌在内部烷基化过程中对苯酚的区域选择性甲基化。
REGIOSELECTIVE SYNTHESIS OF SUBSTITUTED COMPOUNDS
申请人:Oregon State University
公开号:US20230117370A1
公开(公告)日:2023-04-20
Disclosed herein are embodiments of a method for making substituted compounds with specific and selectable regiochemistry. Also disclosed are compounds made by the method. The method may comprise contacting a compound having a formula I
with a compound according to formula II
in the presence of a Lewis acid to form a phenol compound according to formula III and/or a benzofuranone compound according to formula IV
本文公开了一种制造具有特定和可选择区域化学性质的取代化合物的方法的实施例。还公开了用该方法制得的化合物。该方法可包括将具有式 I 的化合物
与根据式 II 的化合物接触
在路易斯酸存在下,生成根据式 III 的苯酚化合物和/或根据式 IV 的苯并呋喃酮化合物
LEHNERT, ERICH K.;SAWYER, J. SCOTT;MACDONALD, TIMOTHY L., TETRAHEDRON LETT., 30,(1989) N9, C. 5215-5218
作者:LEHNERT, ERICH K.、SAWYER, J. SCOTT、MACDONALD, TIMOTHY L.
DOI:——
日期:——
2-(Amino or Substituted Amino)-5, 6-Substituted Phenol Compounds, Dyeing Compositions Containing Them, and Use Thereof
申请人:BOLTON David Philip
公开号:US20080115297A1
公开(公告)日:2008-05-22
The present invention relates to 2-(amino or substituted amino)-5,6-substituted phenol compounds according to the Formula (I), as defined herein and compositions for the oxidative dyeing of keratin fibres, comprising a medium suitable for dyeing and a compound of the Formula (I).
Photosensitive Resin Composition
申请人:Taniguchi Ryuichiro
公开号:US20080108723A1
公开(公告)日:2008-05-08
Using a photosensitive resin composition comprising a polyimide (a) having, at the end of the main chain, at least one group selected from the group consisting of a carboxyl group, a phenolic hydroxyl group, a sulfonic acid group and a thiol group, an unsaturated bond-containing polymerizable compound (b1) represented by the general formula (1), and a photopolymerization initiator (c), it is possible to conduct alkaline development and to form a polyimide film having excellent heat resistance, strength and elongation.