5897-78-9Relevant articles and documents
A one-pot synthesis of a self-included bisester-functionalized copillar[5]arene
Jia, Qiong,Du, Xusheng,Wang, Chunyu,Meguellati, Kamel
, p. 721 - 724 (2019)
We report here a one-pot synthetic method for the synthesis of a bisester-functionalized copillar[5]arene (BECP5A) with yield up to 20%. The properties of BECP5A in solution and in solid state were deeply investigated with the aid of 1D and 2D NMR spectra
One-pot synthesis of cyclophane-type macrocycles using manganese(iii)- mediated oxidative radical cyclization
Ito, Yosuke,Tomiyasu, Yuichi,Kawanabe, Takahiro,Uemura, Keisuke,Ushimizu, Yuu,Nishino, Hiroshi
supporting information; scheme or table, p. 1491 - 1507 (2011/04/23)
Cyclophane-type macrocyclic compounds from 21 to 56 members having two fused dihydrofuran rings were synthesized by the manganese(iii)-mediated oxidation of terminal dienes with bis(3-oxobutanoate)s containing aromatics. The reaction detail, characterization and reaction pathways are described. The Royal Society of Chemistry 2011.
Polymeric salen-Ti(IV) or V(V) complex catalyzed asymmetric synthesis of O-acetylcyanohydrins from KCN, Ac2O and aldehydes
Huang, Wei,Song, Yuming,Wang, Jing,Cao, Guoying,Zheng, Zhuo
, p. 10469 - 10477 (2007/10/03)
Polymeric salen-Ti(IV) and V(V) complexes were employed in the enantioselective O-acetyl cyanation of aldehydes with potassium cyanide and acetic anhydride. The crosslinked polymeric salen-Ti(IV) catalyst exhibited good activities and enantioselectivities, up to 91% ee with 99% conversion was obtained at -20°C with 1 mol% of catalyst (based on bimetallic catalytic unit). Moreover, six consecutive recyclings with the easily recovered crosslinked polymeric catalyst showed no obvious decrease in either activity or enantioselectivity. Linear polymeric salen-V(V) catalyst showed good catalytic efficiency too, up to 94% ee with 99% conversion was obtained at -42°C with 5 mol% of catalyst. Graphical Abstract.