13369-47-6Relevant academic research and scientific papers
Method for synthesizing vitamin K3 epoxy derivatives
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Page/Page column 6, (2018/10/11)
The invention discloses a method for synthesizing vitamin K3 epoxy derivatives. The method comprises the following steps: taking a 2-methyl-1,4-naphthoquinone (vitamin K3) derivative (I) as a raw material, taking tetrabutylammonium iodide (TBAI) as a cata
Tetrabutylammonium Iodide Catalyzed Epoxidation of Naphthoquinone Derivatives with tert -Butyl Hydroperoxide as an Oxidant
Ai, Bai-Ru,Chen, Xu-Ling,Dong, Yu,Tang, Lei,Wang, Ji-Yu
, p. 4017 - 4024 (2017/08/29)
An efficient and environmentally benign procedure has been developed for the epoxidation of naphthoquinone derivatives by using tetrabutylammonium iodide as a catalyst and tert -butyl hydroperoxide as an oxidant in the presence of silicon dioxide. This protocol, which provides a facile base-free methodology for the synthesis of some new naphthoquinone-based epoxides, features mild reaction conditions, high yields, remarkably short reaction time, and broad substrate scope.
ASYMMETRIC WEITZ - SCHEFFER EPOXIDATION PROMOTED BY BOVINE SERUM ALBUMIN. PART III. HIGHLY STEREOELECTIVE SYNTHESIS OF OPTICALLY ACTIVE EPOXYNAPHTHOQUINONES.
Colonna, Stefano,Gaggero, Nicoletta,Manfredi, Amedea,Spadoni, Massimo,Casella, Luigi,et al.
, p. 5169 - 5178 (2007/10/02)
The epoxidation of 2-substituted naphthoquinones with t-BuOOH in an aqueous buffer solution containing a small amount (up to 5 percent molar equiv) of bovine serum albumin (BSA) gives the corresponding epoxides with enantiomeric excess (e.e.) up to 100 pe
CATALYTIC ASYMMETRIC WEITZ-SCHEFFER REACTION IN THE PRESENCE OF BOVINE SERUM ALBUMIN
Colonna, Stefano,Manfredi, Amedea
, p. 387 - 390 (2007/10/02)
Epoxidation of 2-substituted 1,4-naphthoquinones with t-BuOOH or H2O2 in the presence of a catalytic amount of bovine serum albumin afforded the corresponding epoxynaphthoquinones in up 70percent e.e.
