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everdevil新蟲 (初入文壇)
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[求助]
求助翻譯一段文獻(xiàn) 很短 急求
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we have developed a Rh(III) catalyzed oxidative isoquinolone synthesis using a transient 5-membered rhodacycle accessed from ortho C - H/N - H activation. We found that heterocycles are well tolerated in the reaction allowing access to a number of unique molecular scaffolds. Additionally, unsymmetrical alkynes are tolerated in high yield and high regioselective with high functional group tolerance. The mechanism of the reaction was probed to find that C - H activation is the turnover-limiting step. A series of competition experiments shed light on this mech-anism, suggesting alkyne insertion is largely governed by steric factors and alkyne coordination plays a central role in product selectivity. 郵箱everdevil@163.com |
版主 (文壇精英)
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我們已經(jīng)開發(fā)出正常Rh(Ⅲ)催化氧化異喹啉的合成使用瞬態(tài)鄰ç5員rhodacycle的訪問(wèn) - H / N - H活化。 我們發(fā)現(xiàn),雜環(huán)以及允許訪問(wèn)一些獨(dú)特的分子腳手架反應(yīng)的耐受性。此外,不對(duì)稱炔容忍高收益和高選擇性與高功能組寬容。反應(yīng)機(jī)制,探索發(fā)現(xiàn),C - H激活是營(yíng)業(yè)額的限制步驟。一系列的競(jìng)爭(zhēng)實(shí)驗(yàn)揭示光在這個(gè)機(jī)甲機(jī)制,炔插入在很大程度上受空間位阻的因素和炔協(xié)調(diào)的,在產(chǎn)品的選擇性起著核心作用。 |
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