申请人:KNU-Industry Cooperation Foundation 강원대학교산학협력단(220040088571) BRN ▼221-82-10213
公开号:KR20150014210A
公开(公告)日:2015-02-06
본 발명은 하기 화학식 1로 표시되는 알키닐레이션(alkynylation) 된 벤즈옥사졸(benzoxazole) 유도체의 제조방법에 관한 것으로, 보다 상세하게는, 팔라듐 촉매, 포스핀계 리간드로 1,3-bis(diphenylphosphino)propane 존재 하에서 은염(silver salt), 프로피올릭 산(propiolic acid) 및 벤즈옥사졸 화합물을 반응시켜 알키닐레이션(alkynylation) 된 벤즈옥사졸 유도체의 제조방법에 관한 것이다.
Facile Preparation of 2-Substituted Benzoxazoles and Benzothiazoles via Aerobic Oxidation of Phenolic and Thiophenolic Imines Catalyzed by Polymer-Incarcerated Platinum Nanoclusters
Platinum nanoclusters supported on a polymer/carbon black composite material was found to be an excellent catalyst for the oxidative cyclization of phenolic and thiophenolic Schiff bases to 2-substituted benzoxazoles and benzothiazoles under ambient conditions.
Palladium-Catalyzed Decarboxylative C-H Alkynylation of Benzoxazoles with α,β-Ynoic Acids
作者:Jinsik Kim、Dongjin Kang、Eun Jeong Yoo、Phil Ho Lee
DOI:10.1002/ejoc.201301441
日期:2013.12
Palladium-catalyzeddecarboxylativeC–Halkynylation of benzoxazoles with α,β-ynoicacids was achieved for the first time. This straightforward method was found to be synthetically effective without strong base under air.
The direct C−H alkynylation of azoles with terminal alkynes proceeds efficiently under a nickel/O2 catalytic system. On the other hand, a copper/air catalyst enables the coupling of polyfluoroarenes with terminal alkynes. These catalyses provide new accesses to arylacetylenes through the formal direct Sonogashira coupling.
在镍/ O 2催化体系下,唑类与末端炔烃的直接CH炔基化反应有效进行。另一方面,铜/空气催化剂能够使多氟芳烃与末端炔烃偶联。这些催化剂通过正式的直接Sonogashira偶联为芳基乙炔提供了新的途径。
Highly Efficient and Versatile Pd-Catalyzed Direct Alkynylation of Both Azoles and Azolines
作者:Seok Hwan Kim、Sukbok Chang
DOI:10.1021/ol100488v
日期:2010.4.16
A highly efficient and versatile Pd-catalyzed directalkynylation reaction of heterocycles with 1-bromoalkynes was developed. The substrate scope of the reaction was very broad to include not only azoles but also azolines for the first time, thus offering an important advance in the direct functionalization of heterocycles.