phlegm
发表于 2025-3-25 03:55:07
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蜈蚣
发表于 2025-3-25 09:26:44
a variety of reasons. These may include assessing intellectual development (e.g., mental retardation), monitoring the progression of a disease process (e.g., dementia), documenting recovery of function following insult (e.g., stroke), or evaluating the therapeutic efficacy of a specific treatment (
MODE
发表于 2025-3-25 14:58:09
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享乐主义者
发表于 2025-3-25 17:23:22
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蛤肉
发表于 2025-3-26 00:02:51
Alkenylboranes and Control of Olefinic Geometry, nucleofuge, such as halide, alkoxide, amino, or alkylthio. The other is via direct electrophilic replacement of boron from an alkenylborane. Many known examples in the first category derive the stereospecifically β-substituted borane from an alkenylborane, though there are significant exceptions th
高原
发表于 2025-3-26 03:29:55
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飞来飞去真休
发表于 2025-3-26 08:14:17
Asymmetric Hydroboration Chemistry, .-2-butene with (−)-diisopinocampheylborane (.) derived from (+)-α-pinene proceeded with high diastereoselectivity to form the intermediate trialkylborane . . When . of high enantiomeric purity is used and the procedure is otherwise optimized, this process yields 98% ee in the final produ
Tincture
发表于 2025-3-26 09:04:37
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极大痛苦
发表于 2025-3-26 15:53:53
Asymmetric Reductions and Miscellaneous Reactions,e two major categories of enantioselective reductions include those that donate hydride by p-elimination of boron from alkylboranes (Section 9.2), and those that donate hydride directly by breaking a B—H bond (Section 9.3). Some of the latter have been made catalytic (Section 9.3.3), and even though
哑巴
发表于 2025-3-26 20:07:20
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