余承东称iPhone Duo发布后Pura X Max销量增76%

yun2026

余承东称iPhone Duo发布后Pura X Max销量增76%

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/23e9096aec52ed478041b06bee8ff75b
https://lightroom.adobe.com/shares/3c1f02be15785f42902213db77859a08
https://lightroom.adobe.com/shares/c9a0a26cac9c38428f1809b803886e21
https://lightroom.adobe.com/shares/8320e3c0aaa16547afb5bc33d5e73b25
https://lightroom.adobe.com/shares/2cee1524dcf9eb4a9c6f582f2c57034a
https://lightroom.adobe.com/shares/5efed1b3304fc8408db5afaa67016708
https://lightroom.adobe.com/shares/84500c1c29cbb94f82f6cc6b9ad37003
https://lightroom.adobe.com/shares/cc796abfb746b44fb4874a8a11541728
https://lightroom.adobe.com/shares/75c4ad3a88f9344ea4b228f9cc753891
https://lightroom.adobe.com/shares/f23e41cedda72a4794e18b5103e9b1ec
https://lightroom.adobe.com/shares/d0610e6d2d05e34a88f11925ded3df50
https://lightroom.adobe.com/shares/3f26b51e2ddeaf4aa4ee97ffd9a32be4
https://lightroom.adobe.com/shares/791b009f0978704a8480252417e665d1
https://lightroom.adobe.com/shares/79834502f3ee64439a776c383629ed45
https://lightroom.adobe.com/shares/53f3e4bbacda784b848a1edda8051999
https://lightroom.adobe.com/shares/b6f5fcdf8acdaf46b6c75103836581ac
https://lightroom.adobe.com/shares/be442c111c7ede4ea405b7ca0cefcdc7
https://lightroom.adobe.com/shares/31205bd3be371f47a6da2239f54b2085
https://lightroom.adobe.com/shares/6aeccfbb73a25242a5d11cc53ee6e852
https://lightroom.adobe.com/shares/cc1f1af5d553d147b18cb5806839a93e
https://lightroom.adobe.com/shares/cd15c7d57138a14eb4cdfc2c2fdbe20a
https://lightroom.adobe.com/shares/9c0172099108a347b190587f1d3f56fe
https://lightroom.adobe.com/shares/d9453a715ff08b4ebb4fd21326867117
https://lightroom.adobe.com/shares/01865bcf1d14d44c92091aa5451f6f95
https://lightroom.adobe.com/shares/6fb7010a92b2bc488eff22cffe711614
https://lightroom.adobe.com/shares/477074c0f75fc74086503ae0e07735ac
https://lightroom.adobe.com/shares/0eabdb278c966244a1f07287072cc44c
https://lightroom.adobe.com/shares/7d689369e4239c42926f417e8124147a
https://lightroom.adobe.com/shares/361db511aaf0404f99d61e86551c8aff
https://lightroom.adobe.com/shares/32ced26551f6ce4d88e57b43255b72a3
https://lightroom.adobe.com/shares/ada72408a11c2f4895a0913e783aac71
https://lightroom.adobe.com/shares/7b15d7a950a7fe4d9c2a7daab31e2e18
https://lightroom.adobe.com/shares/ecc2eff851435a40aed9e8dc3ddb6655
https://lightroom.adobe.com/shares/752cbe975f0a284a81180f0c903825d9
https://lightroom.adobe.com/shares/890250dfbc128e44a141caba3d5ca505
https://lightroom.adobe.com/shares/e4456b58c786144d85c2962194679420
https://lightroom.adobe.com/shares/21017003f4723647b8944eb0fceb8169
https://lightroom.adobe.com/shares/2636086fcbb2474380c200b51a6e4798
https://lightroom.adobe.com/shares/add7ab87d5286740b63bba8279bd592a
https://lightroom.adobe.com/shares/ae629ecb5cbacd4cbd10acfcab59660a
https://lightroom.adobe.com/shares/cfa0d673b8a21143b62a3036d26983c5
https://lightroom.adobe.com/shares/2bcbef5d7505c44ea506edaf16740cd7
https://lightroom.adobe.com/shares/09115e12bee33b4ebeca4ef518a45ad4
https://lightroom.adobe.com/shares/c932e261d214e54caf59556f94020b08
https://lightroom.adobe.com/shares/59bf32c2c6d379478ec724335e1e68e9
https://lightroom.adobe.com/shares/29a37f8a60068245bfbf34d557c620ce
https://lightroom.adobe.com/shares/a1c8086e9913a34193b8bd3816728645
https://lightroom.adobe.com/shares/dd24fce9781e674fba69313ff4947596
https://lightroom.adobe.com/shares/961166810bdf3f46bcdbdc228a90dcbe
https://lightroom.adobe.com/shares/f9a2884247d2384390a0b99a8502adb8