3695-95-2Relevant articles and documents
An Organic Crystal with High Elasticity at an Ultra-Low Temperature (77 K) and Shapeability at High Temperatures
Liu, Huapeng,Ye, Kaiqi,Zhang, Zuolun,Zhang, Hongyu
, p. 19081 - 19086 (2019)
Organic single crystals with elastic bending capability and potential applications in flexible devices and sensors have been elucidated. Exploring the temperature compatibility of elasticity is essential for defining application boundaries of elastic mate
Highly active g-C3N4 as a solid base catalyst for knoevenagel condensation reaction under phase transfer conditions
Sharma, Priti,Sasson, Yoel
, p. 25589 - 25596 (2017/07/10)
In a promising approach, heterogeneous g-C3N4 as a solid base catalyst exhibits appreciable activity in Knoevenagel condensations at room temperature for the synthesis of substituted stilbene in presence of a crown-ether phase transfer catalyst. High yield of the product substituted stilbene were isolated in a very short reaction time period (~30 min). The solid base g-C3N4 catalyst was proven to be recyclable for several runs. Various aromatic substrates were screened using heterogeneous base g-C3N4 catalyst, exhibiting appreciable corresponding product yield (~99%) at room temperature.
Application of group v polyoxometalate as an efficient base catalyst: A case study of decaniobate clusters
Hayashi, Shun,Yamazoe, Seiji,Koyasu, Kiichirou,Tsukuda, Tatsuya
, p. 16239 - 16242 (2016/02/20)
The base catalytic activity of the decaniobate cluster (TMA)6[Nb10O28]·6H2O (TMA+ = tetramethylammonium cation) was studied theoretically and experimentally. Density functional theory calculations showed that the oxygen atoms in the cluster are highly negatively charged and suggested the possibility that the cluster can act as a base catalyst. We demonstrated for the first time that [Nb10O28]6- actually exhibits base catalytic activity for aldol-type condensation reactions including Knoevenagel and Claisen-Schmidt condensation reactions. The catalytic reactions proceeded under ambient conditions, suggesting that [Nb10O28]6- holds promise as a practical strong base catalyst.