Ahamed, K. A. Basheer; Nambi, K.; Arulraj, S. J., Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical, 1987, vol. 26, # 8, p. 672 - 674
POLARIZING PLATE PROTECTIVE FILM, POLARIZING PLATE, AND DISPLAY DEVICE
申请人:FUJIFILM Corporation
公开号:US20170226317A1
公开(公告)日:2017-08-10
A polarizing plate protective film which prevents deterioration of polarization performance in a high temperature, high humidity environment, and a polarizing plate and display device using the film including a compound represented by the following General Formula (I).
(X-L
n
z
General Formula (I)
X represents a formyl group, a boronic acid group, or a group represented by the following General Formula (I-B) or a group represented by the following General Formula (I-C), where L represents a single bond or divalent linking group, and n represents an integer equal to or greater than 2. When n is 2, Z represents a single bond or a divalent group, and when n≧3, Z represents an n-valent group.
R
A
and R
B
represent an alkyl group, a cycloalkyl group, an aryl group, or an acyl group. R
A
and R
B
may be bonded to each other to form a ring. * represents a bond to be bonded to L.
一种偏光板保护膜,可防止在高温高湿环境中偏光性能的恶化,以及使用包括下述一般式(I)所代表的化合物的偏光板和显示装置。
(X-L
n
z
一般式(I)
X代表甲酰基、硼酸基或由下述一般式(I-B)所代表的基团或由下述一般式(I-C)所代表的基团,其中L代表单键或二价连接基团,n代表大于或等于2的整数。当n为2时,Z代表单键或二价基团,当n≧3时,Z代表n价基团。
RA和RB代表烷基、环烷基、芳基或酰基。RA和RB可以相互连接形成环。*代表要连接到L的键。
Vinylethers can be protonated to generate oxocarbenium ions that react with Me3SiCN to form cyanohydrin alkylethers. Reactions that form racemic products proceed efficiently upon conversion of the vinylether to an α-chloro ether prior to cyanide addition in a pathway that proceeds through Brønsted acid-mediated chloride ionization. Enantiomerically enriched products can be accessed by directly protonating
乙烯基醚可以质子化以生成氧代碳正离子,该离子与 Me 3 SiCN反应形成氰醇烷基醚。在通过布朗斯台德酸介导的氯离子电离进行的途径中,在加入氰化物之前将乙烯基醚转化为 α-氯醚后,形成外消旋产物的反应有效进行。可以通过用手性布朗斯台德酸直接质子化乙烯基醚以形成手性离子对来获得对映体富集的产品。Me 3 SiCN 作为亲核试剂,PhOH 在不对称双分子亲核加成到氧碳鎓离子的罕见例子中作为化学计量质子源。计算研究为催化剂和氧代碳正离子之间的相互作用提供了模型。
<i>syn</i>-Selective Kobayashi Aldol Reaction Using Acetals
作者:Hiroyuki Tsukada、Yuki Mukaeda、Seijiro Hosokawa
DOI:10.1021/ol303519y
日期:2013.2.1
The Kobayashi aldol reaction has been used to construct anti-aldol products by remote stereoinduction. Since the product of the Kobayashi aldol reaction has a typical polyketide structure, this reaction has been applied to the total synthesis of natural products. By varying this reaction, it was found that the reaction with acetals in the presence of Lewis acid proceeded to give syn adducts in high
A Facile One-Pot Synthesis of Symmetrical and Unsymmetrical Acetaldehyde Acetals from Primary Alcohols
作者:Rodney Kiplin Guy、Richard Anthony DiPietro
DOI:10.1080/00397919208019270
日期:1992.3
alcohol 1 with ethyl vinyl ether in the presence of mercury (11) acetate followed by treatment with the same or a different alcohol in the presence of p-toluenesulfonic acid affords the symmetrical and unsymmetrical acetaldehyde acetals 3 in good overall yield. The method is easily scaled up and represents a significant improvement over currently available procedures.
Chiral recognition in the reaction of the enolate derived from [(η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(CO)(PPh<sub>3</sub>)COCH<sub>2</sub>OCH<sub>2</sub>Ph] with 1-phenylethyl bromide
作者:Stephen G. Davies、David Middlemiss、Alan Naylor、Martin Wills
DOI:10.1039/c39900000797
日期:——
Chiralrecognition to the extent of 30 : 1 has been observed in the reaction between the homochiral iron acyl complex [(η5-C5H5)Fe(CO)(PPh3)COCH2OCH2Ph] and racemic 1-phenylethyl bromide.
手性识别到30的范围内:1已经在纯手性铁酰基配合物[(η之间的反应被观察到5 -C 5 H ^ 5)的Fe(CO)(PPH 3)COCH 2 OCH 2 PH]和外消旋1-苯基乙基溴化物。