METHOD FOR PRODUCING TRANS-BIS(AMINOMETHYL)CYCLOHEXANE, METHOD FOR PRODUCING BIS(ISOCYANATOMETHYL)CYCLOHEXANE, BIS(ISOCYANATOMETHYL)CYCLOHEXANE, POLYISOCYANATE COMPOSITION, AND POLYURETHANE RESIN
申请人:MITSUI CHEMICALS, INC.
公开号:US20160207875A1
公开(公告)日:2016-07-21
A method for producing trans-bis(aminomethyl)cyclohexane includes a trans-isomerization step in which cis-dicyanocyclohexane is isomerized into trans-dicyanocyclohexane by heating dicyanocyclohexane containing cis-dicyanocyclohexane in the presence of a tar component produced by distillation of dicyanocyclohexane; and an aminomethylation step in which trans-dicyanocyclohexane produced by the trans-isomerization step is allowed to contact with hydrogen to produce trans-bis(aminomethyl)cyclohexane.
Glycol-modified molybdate catalysts for efficient singlet oxygen generation from hydrogen peroxide
作者:Joos Wahlen、Dirk De Vos、Walther Jary、Paul Alsters、Pierre Jacobs
DOI:10.1039/b704238h
日期:——
Pretreatment of molybdate-exchanged layered double hydroxides in polyalcohols such as ethylene glycol affords heterogeneous catalysts showing largely improved oxidant efficiency compared to the unmodified materials.
[EN] PROCESS FOR MAKING A CONJUGATED DIENE FROM AN ALLYL ALCOHOL<br/>[FR] PROCÉDÉ DE FABRICATION D'UN DIÈNE CONJUGUÉ À PARTIR D'UN ALCOOL D'ALLYLE
申请人:GIVAUDAN SA
公开号:WO2021255052A1
公开(公告)日:2021-12-23
An in-situ method for making a conjugated diene from an allyl alcohol comprising the conversion of the allyl alcohol to an allyl carbonate, allyl ester or allyl formate with concomitant or subsequent conversion of the allyl carbonate, allyl ester or allyl formate to the conjugated diene; the products obtained by said method, and the uses of said products.
作者:Mohamed Elsherbini、Rudolf K. Allemann、Thomas Wirth
DOI:10.1002/chem.201903505
日期:2019.9.25
An operationally simple continuous flow generator of "dark" singletoxygen has been developed. The singletoxygen was efficiently reacted with several chemical traps to give the corresponding oxygenated products in high yields. The developed "dark" singletoxygen generator has been successfully applied in the synthesis of the antimalarial drug artemisinin.
Cleaner Continuous Photo-Oxidation Using Singlet Oxygen in Supercritical Carbon Dioxide
作者:Richard A. Bourne、Xue Han、Martyn Poliakoff、Michael W. George
DOI:10.1002/anie.200901731
日期:——
High pressure under the spotlight: A new milliliter‐scale reactor is developed for usingsupercritical CO2 to perform continuous photo‐oxidation reactions. Changing from a traditional microliter‐scale batch reaction to 8 hours of reaction using the new reactor gives a 3000‐fold scale‐up of the oxidation of α‐terpinene (see picture).