118966-48-6Relevant articles and documents
Selective synthesis of spiro and dispiro compounds using Mn(III)-based oxidation of tetracarbonyl compounds
Hisano, Kazuki,Nishikawa, Satomi,Nishino, Hiroshi,Shibuya, Keisuke,Yokote, Suzuka
, (2020/04/21)
The Mn(III)-based oxidation of methylenebis(cyclohexanedione)s and methylenebis(piperidinedione)s as a tetracarbonyl compound was investigated under various conditions, selectively producing spiro dihydrofurans and dispiro cyclopropanes depending on the solvent. The mechanism for the formation of the spiro dihydrofurans and dispiro cyclopropanes was discussed. In addition, a simple synthesis of a new type of alkaloid, 3,4,6,7,8,10-hexahydro-1H-pyrano[3,2-c:5,6-c’]dipyridine-1,9(2H)-diones, was demonstrated.
A new iodonium ylide-based three-component reaction leading to 2-spirosubstituted dihydrofurans under microwave irradiation
Tu, Xing-Chao,Yu, Yan,Tu, Man-Su,Jiang, Bo,Li, Chao,Tu, Shu-Jiang
, p. 436 - 441 (2014/04/17)
A new iodonium ylide-based three-component reaction for the synthesis of highly functionalized 2-spirosubstituted dihydrofurans starting from readily available common reactants has been developed under microwave irradiation. The procedure is facile, avoid
Selective formation of spiro dihydrofurans from one-pot reaction of dimedone with BrCN and aldehydes in the presence of Et3N
Noroozi Pesyan, Nader,Shokr, Alireza,Behroozi, Mohammad,Sahin, Ertan
, p. 565 - 575 (2013/07/27)
Reaction of 5,5-dimethylcyclohexane-1,3-dione (dimedone), aldehydes and cyanogen bromide in the presence of triethylamine leads to the selective formation of spiro dihydrofurans in moderate to good yields at room temperature.