通过二芳基碘鎓盐,叠氮化钠和末端炔的铜(I)催化的反应,描述了一种有效的,一锅法,区域选择性的1,4-二芳基-1 H -1,2,3-三唑的合成。该协议的普遍性通过合成一系列高至高收率的1,4-二芳基-1 H -1,2,3-三唑来证明。催化剂和反应溶剂在不明显降低产物收率的情况下被重复使用。 1,4-二芳基-1 H -1,2,3-三唑-点击化学-二芳基碘鎓盐-叠氮化芳基-环加成
An efficient and high yielding Cu-catalyzed direct CâH arylation of azaheterocycles including oxadiazoles, thiadiazoles, benzoxazoles and benzothiazoles has been achieved by employing easily accessible diaryliodonium salts.
신규 유기설핀염인 소듐 (tert-뷰틸다이메틸실릴)옥시메테인설핀염을 이용한 설폰 및 설포닐 유도체 화합물 제조 방법
申请人:Seoul National University R&DB Foundation 서울대학교산학협력단(120070509242) Corp. No ▼ 114371-0009224BRN ▼119-82-03684
公开号:KR20210043801A
公开(公告)日:2021-04-22
신규 유기설핀염인 소듐 (tert-뷰틸다이메틸실릴)옥시메테인설핀염을 이용한 설폰 및 설포닐 유도체 화합물 제조 방법에 관한 것으로, 상기 신규 유기설핀염은 안정성, 환경친화성 및 경제성이 좋고 다루기 용이하며, 아릴 또는 알케닐을 도입할 때 사용되는 전이금속 촉매의 사용량 및 유기설핀염의 사용량을 현저히 감소시키고, 2차 기능화 중 알킬레이션, 아릴레이션, 아미네이션, 플루오리네이션이 모두 가능한바, 비대칭형 설폰 유도체를 포함한 다양한 종류의 설폰 및 이의 유도체 화합물 제조 및 대량생산에 유용하게 사용될 수 있다.
An efficient and general protocol for the synthesis of diarylsulfones via the metal-free coupling of readily available diaryliodonium salts and arenesulfinates in PEG-400 under microwave irradiation has been developed. Utilizing this metal-free and eco-friendly protocol, we have prepared various diarylsulfones in high yields and shorter reaction times under mild conditions. Furthermore, the coupling
Cu-Catalyzed Couplings of Aryl Iodonium Salts with Sodium Trifluoromethanesulfinate
作者:Steven C. Cullen、Shashank Shekhar、Nandkishor K. Nere
DOI:10.1021/jo401868x
日期:2013.12.6
A convenient method for the preparation of aryl trifluoromethylsulfones from the reactions of diaryliodonium salts with sodium trifluoromethanesulfinate in the presence of copper catalysts is described. Cuprous oxide in DMF was found to be the optimal catalyst for the reaction. The reaction conditions are tolerant of various functional groups as well as of various counteranions of the iodonium salt
Hypervalent Iodine in Synthesis XXXIII: Palladium-Catalyzed Cross-Coupling Reaction of Potassium Aryltrifluoroborates with Diaryliodonium Salts and Hydroxy(tosyloxy)iodobenzene
作者:Min Xia、Zhen-Chu Chen
DOI:10.1080/00397919908086252
日期:1999.7
Abstract Potassium aryltrifluoroborates react smoothly with diaryliodonium salts and hydroxy(tosyloxy)iodobenzene, PhI(OH)OTs, under mild conditions in the presence of a palladium catalyst and without added base to afford biaryls in excellent yields.