A Practical and General Synthesis of Unsymmetrical Terphenyls
摘要:
[GRAPHICS]A synthetic procedure was developed that enables sequential chemoselective Suzuki-Miyaura cross-coupling of chlorobromobenzene with arylboronic acids. The first coupling is achieved at room temperature using a ligandless palladium catalyst. The chlorobiaryl product can then be subjected directly to the second coupling, facilitated by the SPhos ligand. Using this methodology, parallel synthesis of 32 unsymmetrical o-, m-, and p-terphenyl compounds was accomplished in good to excellent overall yields.
A Practical and General Synthesis of Unsymmetrical Terphenyls
作者:Jose M. Antelo Miguez、Luis Angel Adrio、Antonio Sousa-Pedrares、Jose M. Vila、King Kuok (Mimi) Hii
DOI:10.1021/jo701308b
日期:2007.9.1
[GRAPHICS]A synthetic procedure was developed that enables sequential chemoselective Suzuki-Miyaura cross-coupling of chlorobromobenzene with arylboronic acids. The first coupling is achieved at room temperature using a ligandless palladium catalyst. The chlorobiaryl product can then be subjected directly to the second coupling, facilitated by the SPhos ligand. Using this methodology, parallel synthesis of 32 unsymmetrical o-, m-, and p-terphenyl compounds was accomplished in good to excellent overall yields.
다환기가 치환된 신규의 전이금속 화합물, 이를 포함한 전이금속 촉매 조성물 및 이를 이용한 에틸렌과 α-올레핀 공중합체 또는 에틸렌과 올레핀-디엔 공중합체의 제조방법
申请人:SABIC SK NEXLENE COMPANY PTE. LTD. 사빅 에스케이 넥슬렌 컴퍼니 피티이 엘티디(520150579757)
公开号:KR101889978B1
公开(公告)日:2018-08-21
본 발명은 전이금속 화합물, 이를 포함하는 에틸렌과 α-올레핀의 공중합체 또는 올레핀-디엔 공중합체 제조용으로 높은 촉매활성과 공단량체 함량이 높은 영역에서도 고분자량의 공중합체를 제조할 수 있는 전이금속 촉매 조성물 및 이를 이용한 에틸렌과 α-올레핀의 공중합체 및 올레핀-디엔 공중합체의 제조방법을 제공한다.