evanescent
发表于 2025-3-23 13:24:54
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Ordnance
发表于 2025-3-23 14:33:36
Experiments,uppliers and used without further purification unless otherwise noted. Column chromatography was performed on Fuji Silysia BW-200 silica gel or Kanto Kagaku Silica Gel 60 N (spherical, neutral) .. Reactions and chromatography fractions were analyzed by thin-layer chromatography (TLC) carried out on
abysmal
发表于 2025-3-23 19:15:28
Tomohiro ItoNominated as an outstanding Ph.D. thesis by Kyoto University.Provides detailed introduction of the properties of cyclobutene and medium-sized trans-cycloalkene.Explains detailed principle and provides
Conflict
发表于 2025-3-23 23:10:09
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Chivalrous
发表于 2025-3-24 03:29:20
https://doi.org/10.1007/978-981-97-0787-4Molecular strain; Cyclobutene; trans-Cycloalkene; 2+2 cycloaddition; 4π-electrocyclic reaction; Heck reac
绝食
发表于 2025-3-24 09:59:52
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言行自由
发表于 2025-3-24 14:09:12
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FUSC
发表于 2025-3-24 17:11:51
,Synthesis of Functionalized Medium-Sized ,-Cycloalkenes by 4π-Electrocyclic Ring-Opening—Alkylationnto functionalized MtCAs in a few simple stages, including the synthesis of enol silyl ether, cycloaddition, and the domino .-electrocyclic ring-opening alkylation (conjugate addition) reaction. The first instance of central-to-planar chirality transfer from enantiomerically enriched cyclobutenes to MtCAs is also described.
LUCY
发表于 2025-3-24 21:48:38
Experiments,00 (1H, 500 MHz; 13C, 126 MHz). Chemical shifts are presented in ppm relative to tetramethylsilane (1H, 0.00) or solvents as follows: CDCl. (13C, 77.0) (1H, 7.26). Abbreviations are as follows: s, singlet; d, doublet; dd, doublet of doublets; ddd doublet of doublets of doublets; t, triplet; td, trip
Perigee
发表于 2025-3-24 23:46:11
Book 2024amples of its generation confirmed at room temperature. Regarding the latter, the synthesis of .trans.-cycloalkenes is noteworthy in terms of establishing a new synthetic methodology and providing one of the few asymmetric synthesis methods, which has not been achieved before. Readers of this book c