瑞银下调Gulfport Energy股价目标，因天然气前景走弱
瑞银下调Gulfport Energy股价目标，因天然气前景走弱2026年9月，中国科学院上海有机化学研究所公布一项精准合成研究。团队围绕官能团化的1,3-二烯设计钯与酸协同参与的催化体系，使相同起始原料能够按不同路径生成空间结构不同的产物。这类原料在化学合成和工业生产中十分常见，但多个反应位置与空间构型同时存在，往往增加了定向制备的难度。
研究人员通过设计手性配体，并调节酸、碱等反应条件，实现了对反应位置、双键几何形态以及多种立体选择性的协同控制。所用条件较温和，催化剂用量可降低至千分之一，体系对空气和水也不敏感。产物保留的酯基为后续改造留下空间。机理实验和计算进一步解释了不同反应步骤如何影响最终结构，为调整催化条件提供依据。该工作为从同一原料出发构建不同精细化学品提供新工具，其价值主要在于提高合成选择性和拓展结构设计能力，具体生产应用仍需针对目标产物开展工艺评估。
https://lightroom.adobe.com/shares/4f00c01974002648835ca91c1ddcc421
https://lightroom.adobe.com/shares/9dd3ea0340e27e4b960b5b278a3c1360
https://lightroom.adobe.com/shares/8a17001d312fa240bf12a85eb0945ee7
https://lightroom.adobe.com/shares/97c526182979f34c8cac654fc8b7915b
https://lightroom.adobe.com/shares/0aef89664c2da445a5e6a4a835451a50
https://lightroom.adobe.com/shares/0d344c0a590d1d4aa579e525828e1838
https://lightroom.adobe.com/shares/bcad9993005b0249a8dbe3724b419ae4
https://lightroom.adobe.com/shares/2a1526d550899e43b3f4d27e98e880f2
https://lightroom.adobe.com/shares/b18ed1d5ff012e4fab2c5557f67c849d
https://lightroom.adobe.com/shares/c83804272cb9724dadf7fba3ae9546c8
https://lightroom.adobe.com/shares/697afde07e53894f92c0833263d21dc8
https://lightroom.adobe.com/shares/abb12e2001539e4b9e548b2e8408e64d
https://lightroom.adobe.com/shares/fed8ae61bbd46f4c86aa9d8ba8c3848e
https://lightroom.adobe.com/shares/1b3c801499d4964caa19eee9baf17aee
https://lightroom.adobe.com/shares/4b163d7e0ed94a4a9fd845c9e9a99b03
https://lightroom.adobe.com/shares/3bf2780bf1c52d409b388b4cbc7c6a88
https://lightroom.adobe.com/shares/b052a18aee473b4a9e4720eb4aee9992
https://lightroom.adobe.com/shares/72486c831f65d943a2b593bc1b45f647
https://lightroom.adobe.com/shares/87c42bd907b59a44acba47be158fd2af
https://lightroom.adobe.com/shares/abcc34f2b998e64cafef326040b84fa9
https://lightroom.adobe.com/shares/da5bafb6dc3b0b4d98d369e7d4836834
https://lightroom.adobe.com/shares/1e8888dcd96c8b4cb2ddb00d05115cf4
https://lightroom.adobe.com/shares/e5c320208815e741b717256327eba9b2
https://lightroom.adobe.com/shares/123c08bcc8871f43970a147142ec3e82
https://lightroom.adobe.com/shares/a9f218847b7f604cacd900d581a8a0f4
https://lightroom.adobe.com/shares/52dc65a6a95f8d48be8dc8f3fffa3e5c
https://lightroom.adobe.com/shares/2c0b17ec07a7164096df0d8aa93f85b5
https://lightroom.adobe.com/shares/b3e8fe54468ce84386a0d57be72bf297
https://lightroom.adobe.com/shares/0a132fab3ed00644a9fb10244d5ecb12
https://lightroom.adobe.com/shares/d5f092b359ceb049b856975393a14a26
https://lightroom.adobe.com/shares/2dc6e6b4497c0a498bbd1cc95b44d450
https://lightroom.adobe.com/shares/46a3ab531a59644abf208d38e1205fde
https://lightroom.adobe.com/shares/b58df6714953804e8ab01ce5af393e4b
https://lightroom.adobe.com/shares/cd69506a91277347bd116d08da9fe72e
https://lightroom.adobe.com/shares/57f432d0ddfe0640b2ab4c9ca8aeb74d
https://lightroom.adobe.com/shares/e76f59289b49cc48a36f7e6fc4068bc6
https://lightroom.adobe.com/shares/33570f701b78904d936e0d3ecef0fc60
https://lightroom.adobe.com/shares/45520eaf1f516e42857fa500562e2209
https://lightroom.adobe.com/shares/19033387f5f6584cacb4aca07d15e951
https://lightroom.adobe.com/shares/a4788ee26f4c824d949a9ea6bcf598a8
https://lightroom.adobe.com/shares/fd69952c209b0d4fa494c15c51ad731f
https://lightroom.adobe.com/shares/85ae9c0cb93a834a8ec4ce0ea325e4b2
https://lightroom.adobe.com/shares/3fbd2d83709d18408e1311cda2617eed
https://lightroom.adobe.com/shares/b24b6b9583abdc478a39eb130494b22b
https://lightroom.adobe.com/shares/0f35d59c87a4774096a2d6864ce11864
https://lightroom.adobe.com/shares/c5583973968ce4499c7cade9f2aca05e
https://lightroom.adobe.com/shares/3be26613b040c546931f295bd521053e
https://lightroom.adobe.com/shares/9fa991bbc2a92f47999c7e8fff43ba9c
https://lightroom.adobe.com/shares/400f9dfd4f93ff49b58019be6f560644
https://lightroom.adobe.com/shares/935971a85bb6c64cb4934f7fe968f86a
沙发！沙发!
页:
[1]