| 8 | 1/1 | 返回列表 |
| 查看: 809 | 回復(fù): 7 | ||
hsiaoeng.221新蟲 (小有名氣)
|
[求助]
求翻譯一句話
|
|
the chirality sensing is based on spontaneous asymmetric transformation of the first kind with stereolabile binaphtholate boron and zinc complexes. the steadily increasing efficiency in asymmetric synthesis has shifted focus toward the development of time efficient optical techniques with potential for high-throughput screening. [ 發(fā)自手機(jī)版 http://www.gaoyang168.com/3g ] |

版主 (文壇精英)

新蟲 (小有名氣)

新蟲 (小有名氣)

版主 (文壇精英)

禁蟲 (文壇精英)
|
本帖內(nèi)容被屏蔽 |
新蟲 (小有名氣)
|
求翻譯This approach eliminates the use of enantiopure BINOL and solely relies on chiral amplification based on central-to-axial chirality induction with stereolabile binaphthol 2 serving as the CD reporter unit. Compared to the general chirality sensing method with B(OMe)3 and 2 described above, the three-component assembly with 31 is limited to substrates having a primary amino group. But it is not applicable to N-methyl ephedrine, 20, and other amines or amino alcohols with secondary or tertiary amino functions. |

新蟲 (小有名氣)
|
求翻譯Recently, Anslyn, James, and Bull introduced an attractive assay for the detection and ee analysis of primary amines that is based on a three-component assembly with enantiopure atropos BINOL and 2-formylphenylboronic acid.23 We assumed that the covalent binding of monoamines via condensation with a 2- formyl-4-methoxyphenylborate complex carrying binaphtholate 2 would yield a strong CD output originating from asymmetric amplification in our probe. Indeed, weak CD signals below 300 nm were obtained from the condensation product of 2-formyl-4- methoxyphenylboronic acid 31 and amines 11, 32, and 33, respectively. This largely changed when the same reaction was performed in the presence of 1 equiv of 2, and we observed significantly enhanced Cotton effects at higher wavelengths (Figure 3 and SI). This approach eliminates the use of enantiopure BINOL and solely relies on chiral amplification based on central-to-axial chirality induction with stereolabile binaphthol 2 serving as the CD reporter unit. Compared to the general chirality sensing method with B(OMe)3 and 2 described above, the three-component assembly with 31 is limited to substrates having a primary amino group. But it is not applicable to N-methyl ephedrine, 20, and other amines or amino alcohols with secondary or tertiary amino functions. |

| 8 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 一志愿北京化工大學(xué)材料與化工 264分各科過A區(qū)國家線 +3 | 哈哈157349 2026-03-21 | 3/150 |
|
|---|---|---|---|---|
|
[考研] 0703化學(xué)調(diào)劑,求導(dǎo)師收 +3 | 天天好運(yùn)來上岸?/a> 2026-03-24 | 3/150 |
|
|
[考研]
|
pk3725069 2026-03-19 | 16/800 |
|
|
[考研] 一志愿211 初試270分 求調(diào)劑 +4 | 谷雨上岸 2026-03-23 | 5/250 |
|
|
[考研] 265求調(diào)劑 +10 | 梁梁校校 2026-03-17 | 10/500 |
|
|
[考研] 一志愿陜師大生物學(xué)071000,298分,求調(diào)劑 +3 | SYA! 2026-03-23 | 3/150 |
|
|
[考研] 考研化學(xué)308分求調(diào)劑 +7 | 你好明天你好 2026-03-23 | 8/400 |
|
|
[考研] 0854電子信息求調(diào)劑 324 +3 | Promise-jyl 2026-03-23 | 3/150 |
|
|
[考研] 求老師收我 +3 | zzh16938784 2026-03-23 | 3/150 |
|
|
[考研] 298求調(diào)劑 +8 | 上岸6666@ 2026-03-20 | 8/400 |
|
|
[考研] 化學(xué)調(diào)劑 +5 | yzysaa 2026-03-21 | 5/250 |
|
|
[考研] 材料求調(diào)劑 +5 | @taotao 2026-03-21 | 5/250 |
|
|
[考研] 一志愿南大,0703化學(xué),分?jǐn)?shù)336,求調(diào)劑 +3 | 收到VS 2026-03-21 | 3/150 |
|
|
[考研] 336求調(diào)劑 +5 | rmc8866 2026-03-21 | 5/250 |
|
|
[考研] 初始318分求調(diào)劑(有工作經(jīng)驗(yàn)) +3 | 1911236844 2026-03-17 | 3/150 |
|
|
[考研] 華東師范大學(xué)-071000生物學(xué)-293分-求調(diào)劑 +3 | 研究生何瑤明 2026-03-18 | 3/150 |
|
|
[考研] 296求調(diào)劑 +6 | www_q 2026-03-18 | 10/500 |
|
|
[考研] 一志愿 西北大學(xué) ,070300化學(xué)學(xué)碩,總分287,雙非一本,求調(diào)劑。 +4 | 晨昏線與星海 2026-03-19 | 4/200 |
|
|
[考博] 申博26年 +3 | 八6八68 2026-03-19 | 3/150 |
|
|
[考研] 0703化學(xué)調(diào)劑 +5 | pupcoco 2026-03-17 | 8/400 |
|