C-C Triple Bond Cleavage/Rearrangement Reaction for Accessing 2,4,4-Trichloronaphthalen-1 (4 H)-ones炔烃联烯酮[2+2]环加成碳碳叁键断裂重组反应2,4,4-三氯萘-1(4H)-酮衍生物以炔烃-联烯酮为原料,水作为亲核试剂,通过N-氯代丁二酰亚胺(NCS)介导的[2+2]环加成和碳碳叁键断裂重组反应合成了1...
C-C Triple Bond Cleavage/Rearrangement Reaction for Accessing 2,4,4-Trichloronaphthalen-1 (4 H)-ones 来自 掌桥科研 喜欢 0 阅读量: 21 作者:蒋文婕,宋雅婷,韦晓静,徐义,陆娟,姜波,郝文娟 摘要: 以炔烃-联烯酮为原料,水作为亲核试剂,通过N-氯代丁二酰亚胺(NCS)介导的[2+2]环加成和碳碳叁键断裂重组...
The C≡C triple bond of 7 was inserted into the AlP bonds of the heterocycles upon warming to give the bicyclic compound 13. A similar compound (12) was directly formed when the bisalkyne 4 was treated with dineopentylaluminum hydride. Their molecular structures show the annulated four- (...
Catalytic Double [2+2] Cycloaddition Relay Enabled C-C Triple Bond Cleavage of Yne-Allenones 喜欢 0 阅读量: 55 作者:Li,Heng,Hao,Wen-Juan,Wang,Mian,Qin,Xue,Tu,Shu-Jiang 摘要: An unusual catalytic double [2 + 2] cycloaddition 年份: 2018 ...
A schematic potential energy surface (PES) of SiCN2 was established to discuss the kinetic stability of the isomers. A new isomer SiCNN was found to possess a typical Si(triple bond)C triple bond, as confirmed by comparative calculations at the B3LYP, QCISD, QCISD(T), CCSD, and CCSD(T...
C≡N triple bond cleavage via trans-membrane hydrogenation. Chem. Catal. https://doi.org/10.1016/j.checat.2022.02.005 (2022). Article PubMed Google Scholar Brotzel, F., Chu, Y. C. & Mayr, H. Nucleophilicities of primary and secondary amines in water. J. Org. Chem. 72, 3679–...
5. The cleavage of the C1–C2 bond in Int.1 via TS1a (Fig. 5a, path a) to give the nine-membered ring radical intermediate (Int.a) is a facile and reversible process with a barrier of only 3.2 kcal/mol. The energy barrier is 3.4 kcal/mol higher for the cleavage of the...
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The lowest value of the correlation energy per electron pair was found from a series of C to C alkanes. The correlation energy increases in molecules with a double C=C bond, oxygen-containing single bond, adjacent double C=C bonds (CHCCCH) and triple carbon bonds and is highest in ...
Biaryl scaffolds are found in natural products and drug molecules and exhibit a wide range of biological activities. In past decade, the transition metal-catalyzed C–H arylation reaction came out as an effective tool for the construction of biaryl motif