Metal- and additive-free transsulfinamidation of N-unsubstituted sulfinamides and N-pivaloyl-protected sulfinamides with various amines is reported. With this method, both N-monosubstituted and N,N-disubstituted sulfinamides were obtained in good yields simply by heating. Preliminary experiments also indicate that alcohols can be used as nucleophiles instead of amines and can provide sulfinate esters
OPTICAL RECORDING MEDIUM, METAL COMPLEX COMPOUND AND ORGANIC DYE COMPOUND
申请人:Mitsubishi Kagaku Media Corporation, Ltd.
公开号:EP1864822A1
公开(公告)日:2007-12-12
Problem: To provide an optical recording medium having a recording layer improved in light stability that is capable of writing and reading of high-density optical information by a short-wavelength laser beam.
Means for Solving the Problems: There is provided an optical recording medium with a recoding layer comprising an organic dye compound, wherein the recording layer contains a metal complex compound composed of a pyridone azo compound represented by the following the general formulas [I] to [III] and a divalent ion of metal coordinated to it such as nickel, cobalt, iron, zinc, copper, manganese and the like, wherein the pyridone azo compound contains a 6-hydroxy-2-pyridone structure as a coupling component and isoxazole, 1,2,4-triazole or pyrazole structure as a diazo component.
(In the general formulas [I] to [III], R1 to R10 each is independently a hydrogen atom or monovalent functional group.)
OPTICAL RECORDING MEDIUM, OPTICAL RECORDING MATERIAL AND METAL COMPLEX COMPOUND
申请人:Mitsubishi Kagaku Media Co., Ltd.
公开号:EP1903561A1
公开(公告)日:2008-03-26
[Problem]: An optical recording medium having a capability of recording and/or reading high density optical information using a short wavelength laser light is provided.
[Means to Address the Problem]: The optical recording medium has a capability of recording and/or reading high density optical information using a short wavelength laser light having a wavelength of 350 nm to 530 nm. The optical recording medium has a recording layer containing a metal complex compound and formed on a substrate. The metal complex compound is composed of a cyclic β-diketone azo compound represented by the general formula (I) or general formula (II) and a divalent metal ion coordinated to the cyclic β-diketone azo compound.