Selective Oxidative Homo- and Cross-Coupling of Phenols with Aerobic Catalysts
摘要:
Simple catalysts that use atom-economical oxygen as the terminal oxidant to accomplish selective ortho-ortho, ortho-para, or para-para homo-couplings of phenols are described. In addition, chromium salen catalysts have been discovered as uniquely effective in the cross-coupling of different phenols with high chemo- and regioselectivity.
Novel sulfonyldiazomethanes, photoacid generations, resist compositions, and patterning process
申请人:——
公开号:US20030180653A1
公开(公告)日:2003-09-25
A chemical amplification type resist composition contains as a photoacid generator a sulfonyldiazomethane compound of formula (1) wherein R is H or C
1-4
alkyl or alkoxy, G is SO
2
or CO, R
3
is C
1-10
alkyl or C
6-14
aryl, p is 1 or 2, q is 0 or 1, p+q=2, n is 0 or 1, m is 3 to 11, and k is 0 to 4. The composition is suited for microfabrication, especially by deep UV lithography because of many advantages including improved resolution and improved pattern profile after development.
1
The invention provides for a low pH disinfectant composition that includes a relatively low amount of alcohol. Also provided is an article of manufacture that includes a textile and the composition, as well as methods of using the composition and article of manufacture (e.g., for reducing the number of microbes located upon a substrate, for killing or inhibiting a broad spectrum of microorganisms, for killing or inhibiting spore forming bacteria, and/or for disinfecting a substrate). The composition can optionally include a stable residual antimicrobial compound, thereby providing a combination of high-level disinfection and long-lasting residual effect.
Gradual permanent coloring of hair using dye intermediates dissolved in alkaline water with a gelling agent
申请人:Unilever Home & Personal Care USA, Division of Conopco, Inc.
公开号:US20030172468A1
公开(公告)日:2003-09-18
A method for permanently dyeing hair which comprises subjecting said hair to a number of treatments, having a set time interval between each two consecutive such treatments, wherein each treatment comprises steps a.) and b.) below:
a.) contacting said hair, for a period of about 5 seconds to about 5 minutes with a recently made mixture of:
part ai: dye intermediates in water with a gelling agent at alkaline pH part aii an oxidizing compound such as hydrogen peroxide in water at acidic pH;
b.) rinsing said mixture from said hair with water;
and wherein said number of treatments is between about 2 to about 30; and wherein said set time interval between each two consecutive treatments is between about 8 hours and 30 days.
一种永久性染发的方法,包括对所述头发进行多次处理,每两次连续处理之间有一 个设定的时间间隔,其中每次处理包括以下步骤 a)和 b):
a.) 在约 5 秒至约 5 分钟的时间内,用最近制成的混合物接触所述头发:
ai 部分:染料中间体在水中与胶凝剂(pH 值为碱性) aii 部分:氧化化合物(如过氧化氢)在水中(pH 值为酸性);
b.) 用清水冲洗头发上的混合物;
其中,所述处理次数介于约 2 次至约 30 次之间;每两次连续处理之间的设定时间间隔介于约 8 小时至 30 天之间。
NOVEL PHENOLSULFONIC ACID ARYL ESTER DERIVATIVE, AND HEAT-SENSITIVE RECORDING MATERIAL USING SAME