4883-60-7Relevant articles and documents
Practical preparation of diosphenols by ring opening of α,β-epoxyketones catalyzed by silica gel supported acids
Zhu, Rui,Xing, Lixin,Wang, Xinyan,Cheng, Chuanjie,Liu, Bo,Hu, Yuefei
, p. 2267 - 2271 (2008/02/09)
The mixed acid (H2SO4-HOAc) catalyzed ring opening of α,β-epoxyketone was the most used method for the preparation of diosphenols, but it seriously suffered from poor yields and tedious workup operations. By using silica gel supported mixed acid (H2SO 4-HOAc), a variety of α,β-epoxyketones were converted into the corresponding diosphenols in unprecedented high yields within a few minutes. Georg Thieme Verlag Stuttgart.
Niobium pentachloride catalysed ring opening of epoxides
Gomes Constantino, Mauricio,Lacerda Jr., Valdemar,Arag?o, Valquiria
, p. 770 - 776 (2007/10/03)
Epoxide ring opening is a frequently required transformation in Organic Synthesis. In this paper we describe the application of NbCl5 for this purpose using three different substrates. Chlorohydrins, 1,2-diols, products containing solvent resid
A New Synthesis of 3-Alkyl-1,2-cyclohexanediones from 2-Alkylcyclohexanones Using Iodine/Copper(II) Acetate
Horiuchi, C. Akira,Kiyomiya, Hiroshi,Takahashi, Masaaki,Suzuki, Yasuto
, p. 785 - 786 (2007/10/02)
The reactions of 2-alkyl-, 2,5-dimethyl-, and 3,3,5-trimethylcyclohexanone with iodine/copper(II) acetate in boiling aqueous acetic acid gave the respective 3-alkyl-, 3,6-dimethyl-, and 3,5,5-trimethyl-1,2-cyclohexanediones in 40-70percent yields.This new