Oxygen Atom Insertion into Iron(II) Phenyl and Methyl Bonds: A Key Step for Catalytic Hydrocarbon Functionalization
作者:Jiajun Mei、Daniel B. Pardue、Steven E. Kalman、T. Brent Gunnoe、Thomas R. Cundari、Michal Sabat
DOI:10.1021/om500914h
日期:2014.10.13
Oxy-functionalization of metal–alkyl and −aryl bonds is a key step in potential hydrocarbon oxidation catalysis. However, well-defined examples of M–R to ROH conversion are rare, especially for first-row transition metals. Cp*Fe(CO)(NCMe)Ph reacts with oxygen or hydrogen peroxide to produce benzoic acid. Removing CO from the Cp*Fe(L)(L′)Ph framework allows simple oxygen atom insertion into the Fe–Ph bond. Cp*Fe(P(OCH2)3CEt)2Ph
A polarizing plate protective film comprising a cellulose ester, and a saccharide ester compound in which all or a part of OH groups in Compound (A) or in Compound (B) are esterified, wherein Compound (A) consists of one of a furanose structure and a pyranose structure, and Compound (B) consists of two to twelve of at least one type of a furanose structure and a pyranose structure which are bonded in Compound (B); wherein the polarizing plate protective film exhibits Ro of 0-10 nm and Rt of −30 to +20 nm.
A cellulose compound film containing a cellulose compound having two or more substituents whose polarizability anisotropies Δα calculated by mathematical formula (1) are different from each other, wherein substitution degrees of the following substituents A and B in the cellulose compound satisfy relationship as defined by mathematical formula (A1), in which the substituent A has the lowest Δα and the substituent B has the highest Δα:
Δ
α
=
α
x
-
α
y
+
α
z
2
Mathematical
formula
(
1
)
wherein, in characteristic values obtained after diagonalization of polarizability tensor, αx is the largest component, αy is the second largest component, and αz is the smallest component;
DS
B
2+
DS
B
3−
DS
B
6≧−0.1 Mathematical formula (A1)
wherein DS
B
2, DS
B
3, and DS
B
6 represent a substitution degree of the substituent B at the 2-, 3-, or 6-position of a β-glucose ring constituting unit of cellulose, respectively; and
an optical compensation film, a polarizing plate, and a liquid crystal display device, using the cellulose compound film.
Cellulose Acylate Film, Method of Producing the Same, Cellulose Derivative Film, Optically Compensatory Film Using the Same, Optically-Compensatory Film Incorporating Polarizing Plate, Polarizing Plate and Liquid Crystal Display Device
申请人:Haruta Hiromoto
公开号:US20090290100A1
公开(公告)日:2009-11-26
A method of producing a cellulose derivative film, the method comprising: forming a film with a solvent cast method from a dope including a cellulose derivative satisfying following conditions (a) and (b): (a) at least one among three hydroxyl groups included in a glucose unit of cellulose is substituted by a substituent of which a polarizability anisotropy Δα represented as following Expression (1) is 2.5×10
−24
cm
3
or higher: Expression (1): Δα=αx−(αy+αz)/2, wherein αx, αy and αz is as defined in the specification; and (b) when a substitution degree by a substituent of which Δα is 2.5×10
−24
cm
3
or higher is P
A
, and a substitution degree by a substituent of which Δα is lower than 2.5×10
−24
cm
3
is P
B
, the P
A
and P
B
satisfy following Expressions (3) and (4): Expression (3): 2P
A
+P
B
>3.0; and Expression (4): P
A
>0.2.