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(KOBu)-Bu-t-promoted C3-homocoupling of quinoxalinones through single electron transfer from an sp(2) carbanion intermediate
- Kwon, Na Yeon;
- Mishra, Neeraj Kumar;
- Park, Jung Su;
- Woo, Sang Kook;
- Ghosh, Prithwish;
- 외 1명
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9초록
The C3-selective homodimerization of quinoxalinones is described. A C3-sp(2) carbanion species generated through deprotonation of quinoxalinone using potassium tert-butoxide ((KOBu)-Bu-t) transfers an electron (single electron transfer mechanism) to a second quinoxalinone, affording a radical-anion intermediate. The radical scavenging and electron paramagnetic resonance (EPR) experiments support the plausible radical reaction pathway. A mild reaction temperature and a short reaction time were attained under cost-effective conditions, which reveal the amenability of this protocol to pharmaceutical and chemical industries.
키워드
NICKEL-COMPLEX; ACTIVATION; BIPYRIDINE; MOLECULES; CHEMISTRY; MANGANESE
- 제목
- (KOBu)-Bu-t-promoted C3-homocoupling of quinoxalinones through single electron transfer from an sp(2) carbanion intermediate
- 저자
- Kwon, Na Yeon; Mishra, Neeraj Kumar; Park, Jung Su; Woo, Sang Kook; Ghosh, Prithwish; Kim, In Su
- 발행일
- 2022-06
- 유형
- Article; Early Access
- 권
- 58
- 호
- 50
- 페이지
- 7078 ~ 7081