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| 本帖產(chǎn)生 1 個(gè) 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | |||
ky888銀蟲 (正式寫手)
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[求助]
幫忙翻譯下文獻(xiàn)啊 正在做實(shí)驗(yàn) 急急急啊
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The diversity oriented synthetic approach employed a threephase approach called build/couple/pair (B/C/P). The first step – the build phase – required the acquisition of stereochemically defined building blocks with suitable functionality for coupling. The building blocks were coupled to generate all possible stereoisomers, and in the final pair phase, the linear precursors were intramolecularly cyclised to give a diversity of ring systems. This approach gave access to both medium-sized (8–9 atom) ring systems and macrocycles with 12–14 atoms. As an illustration, all stereoisomers of the building blocks 1 and 2 were generated (the latter by stereocontrolled aldol condensations), and combined to give all 8 stereoisomers of the dimer 3. Medium-sized rings (4)and macrocycles (5 and 6) were generated by nucleophilic aromatic substitution, Huisgen [3 + 2] cycloaddition and ring-closing metathesis (RCM) reactions. |
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【答案】應(yīng)助回帖
★ ★
ky888(金幣+10, 翻譯EPI+1): 很給力啊 謝謝啦 2011-07-02 01:58:37
Mally89(金幣+2): 感謝應(yīng)助！~歡迎常來(lái)！~ 2011-07-04 16:50:14
ky888(金幣+10, 翻譯EPI+1): 很給力啊 謝謝啦 2011-07-02 01:58:37
Mally89(金幣+2): 感謝應(yīng)助！~歡迎常來(lái)！~ 2011-07-04 16:50:14
| 多樣性導(dǎo)向的合成方法引入了三相方法稱為構(gòu)建/耦合/配對(duì)（B / C / P）。第一步，構(gòu)建階段 - 需要獲得立體化學(xué)定義的并有合適的耦合功能的構(gòu)建單元構(gòu)建單元被耦合生成所有可能的立體異構(gòu)體，在最后配對(duì)階段，線性前體分子內(nèi)成環(huán)生成不同的環(huán)系統(tǒng)。這種方法既能獲得了中型（8-9原子）環(huán)系統(tǒng)，還能獲得大環(huán)化合物（12-14原子）。作為一個(gè)例證，構(gòu)建單元1和2的所有立體異構(gòu)體均可被合成（后者來(lái)自立體選擇性羥醛聚合），他們互相結(jié)合又能生成所有8個(gè)二聚體3的立體異構(gòu)體。中型環(huán)（4）和大環(huán)（5和6）是由親核芳香取代，Huisgen [3 2]環(huán)加成反應(yīng)和環(huán)閉合復(fù)分解（RCM）反應(yīng)而生成的。 |
2樓2011-07-01 22:47:02
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