607690-76-6Relevant academic research and scientific papers
METHOD FOR MANUFACTURING COMPOUND
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Paragraph 0051; 0052, (2020/05/20)
PROBLEM TO BE SOLVED: To find a reaction condition for effectively introducing a substituent bound by a sp2 carbon atom instead of a hydrogen atom of an aromatic ring, and to effectively manufacture a compound in which the substituent bound by the sp2 carbon atom binds at a target position of the aromatic ring. SOLUTION: A compound represented by the general formula (3) is manufactured by reacting a compound represented by the general formula (1) and a compound represented by the general formula (2) in the presence of a copper catalyst of 0.3 equivalent or more of the compound represented by the general formula (2). A1, A2 and A3 represent C(R3) or N, R1 represents C(R4)(R5) or N(R6), R2 represents C(R7)(R8)(R9) or N(R10)(R11), R3 to R11 represent a hydrogen atom or a substituent, and X represents a halogen atom or a leaving group. SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
Efficient Suzuki-Miyaura mono-arylation of symmetrical diiodo(hetero)arenes
Sapegin, Alexander,Krasavin, Mikhail
supporting information, p. 1948 - 1951 (2018/04/16)
A reliable protocol for converting 1,4-diiodo-2,3,5,6-tetrafluorobenzene into 1-(hetero)aryl-4-iodo-2,3,5,6-tetrafluorobenzene derivatives has been lacking in the literature. We have identified optimal conditions to achieve this conversion in good yields and have minimized formation of the bis-coupling product. The newly identified protocol involving the use of a syringe pump has been extended to other symmetrical diiodo(hetero)arenes.
ELECTROCHROMIC COMPOUNDS AND OPTICAL ARTICLES CONTAINING THEM
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Paragraph 0131, (2018/07/31)
Electrochromic compounds and optical articles containing them The present invention relates to a group of novel electrochromic compounds. More specifically, it relates to electrochromic compounds comprising one or several pyridinium rings and the use of these compounds as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
