The reaction between a preassembled CuI bimetallic molecular clip with a short intermetallic distance and a series of fullyaliphatic cyano‐capped ditopic linkers with increasing lengths was investigated. It is shown that, depending on the length of the ditopic linkers, the rational design of unprecedented supramolecular compact metallacycles containing fullyaliphatic walls is possible. The specific
Disclosed are corrosion inhibitor compounds and compositions useful for preventing or inhibiting corrosion of surfaces found in cooling water applications. In some embodiments, the surfaces may include mild steel, aluminum, brass, copper, galvanized steel, a copper alloy, admirality brass, or any combination thereof. Also disclosed are methods of using the compounds and compositions as corrosion inhibitors. In some embodiments, the corrosion inhibitor compounds and compositions are used in cooling water applications.
METHOD FOR PREPARING DICYANOALKANE AND BIS(AMINOMETHYL)ALKANE
申请人:MITSUBISHI GAS CHEMICAL COMPANY, INC.
公开号:US20210139408A1
公开(公告)日:2021-05-13
A method for preparing a dicyanoalkane may omit a filtration for a catalyst after a cyanation reaction can by carrying out the cyanation reaction in a state in which precipitation of a metal catalyst is suppressed. A method for preparing a dicyanoalkane may involve cyanating one or more aliphatic dicarboxylic acids and/or salt(s) thereof with an ammonia source in the presence of a predetermined compound and a catalyst, wherein, in the cyanation, the amount of the predetermined compound is maintained at a predetermined amount or more with respect to the catalyst.
Rationalisation of the regioselective hydrolysis of aliphatic dinitriles with Rhodococcus rhodochrous AJ270
作者:Otto Meth-Cohn、Mei-Xiang Wang
DOI:10.1039/a700859g
日期:——
Aliphatic dinitriles undergo regioselective hydrolysis with the title
organism to give monoacids with up to four methylenes between the nitrile
functions (optimally 2–3) or when either an oxygen is placed β,
γ or δ to the nitrile (δ-placement being optimal) or
β or γ (optimally γ) but not δ sulfur substituents
are present; nitrogen substituents appear to behave as for oxygen but
suffer a steric limitation of the size of the nitrogen substituent.