Electrocatalyzed oxidative B−H nitrogenations of nido‐carborane (nido‐7,8‐C2B9H12−) with N‐heterocycles have been established, enabling the preparation of various N‐substituted nido‐carboranes without chemical oxidants or metal catalyst under ambient conditions. The electrolysis manifold occurred with high levels of efficiency as well as chemo‐ and position‐ selectivity, employing sustainable electricity
已经建立了nido -carborane( nido -7,8-C 2 B 9 H 12 - )与N-杂环的电催化氧化B-H氮化反应,无需化学氧化剂或金属催化剂即可制备各种N-取代的nido -carborane在环境条件下。使用可持续电力作为唯一氧化剂,电解歧管具有高效率以及化学和位置选择性。该策略为用户友好地获取新型氨基酸和荧光硼联吡啶 (BODIPY) 标记的nido碳硼烷杂化物奠定了基础。
Connecting a carbonyl and a π-conjugated group through a <i>p</i>-phenylene linker by (5+1) benzene ring formation
作者:Tatsuya Morofuji、Hanae Kinoshita、Naokazu Kano
DOI:10.1039/c9cc04012a
日期:——
A benzene ring was formed to connect a carbonyl group of various methyl ketones with a π-conjugated group through a p-phenylene linker. Methyl ketones and streptocyanines were used as the C1 and C5 sources, respectively, in the (5+1) annulation, which could form donor–π–acceptor molecules.
A pyridinium salt with crystalline phase transformation under water vapor and reversible mechanochromic luminescent properties
作者:Yi Chen、Xiaoning Li、Weilong Che、Liangjing Tu、Yujun Xie、Zhen Li
DOI:10.1039/d1tc01540k
日期:——
efficiency. Crystal structure analysis indicated that water molecules were involved in the crystal lattice, which promotes crystalline phase transformation from CPBBr-W to CPBBr-G, and greatly inhibits the intramolecular vibration via stabilizing the metastable molecular conformation and strengthening the intermolecular hydrogen bonds. The sharply decreased free volume fraction also demonstrated more compact