METHOD FOR PRODUCING ESTER BY CARBONYLATION OF ETHER

• Main Authors: DIRK FRIDAG, NEUMANN HELFRIED, DONG KAI-WU, RALF JACKSTELL, DIETER HESS, KATRIN MARIE DYBALLA, FRANK GEILEN, ROBERT FRANKE, MATTHIAS BELLER
• Format: Patent
• Language: English; Japanese
• Published: 29.03.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a new process for preparing an ester by carbonylation of an ether, which is inexpensive and simple.SOLUTION: There is provided a process which comprises: a) a step of firstly charging an ether having 3 to 30 carbon atoms; b) a step of adding a phosphine ligand and a compound containing Pd or adding a complex containing Pd and a phosphine ligand; c) a step of supplying CO; and d) a step of heating the reaction mixture to convert the ether, where the phosphine ligand is a compound represented by the formula (I). [m and n each independently is 0 or 1; Rto Reach independently is alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl, at least one of which is a heteroaryl group.]SELECTED DRAWING: None 【課題】エーテルのカルボニル化による、安価で単純な新規のエステル調製プロセスの提供。【解決手段】ａ）最初に、３個から３０個の炭素原子を有するエーテルを装入するステップと、ｂ）ホスフィン配位子と、Ｐｄを含む化合物とを加えるか、またはＰｄとホスフィン配位子とを含む錯体を加えるステップと、ｃ）ＣＯを供給するステップと、ｄ）当該反応混合物を加熱して、当該エーテルを転化させるステップと、を含むプロセスであって、当該ホスフィン配位子が、式（Ｉ）で表される化合物。［ｍ及びｎは夫々独立して、０又は１；Ｒ１〜Ｒ４は夫々独立して、アルキル、シクロアルキル、ヘテロシクロアルキル、アリール又はヘテロアリール、そのうちの少なくとも１つは、ヘテロアリール基]【選択図】なし