Open AccessGraphene Oxide Foam Supported Titanium(IV): Recoverable Heterogeneous Catalyst for Efficient, Selective Oxidation of Arylalkyl Sulfides to Sulfoxides Under Mild Conditions
Author(s) -
Qinghe Wang,
Wenxi Ma,
Qiaolin Tong,
Guijie Du,
Jian Wang,
Meng Zhang,
Hailun Jiang,
Huali Yang,
Yongxiang Liu
Publication year - 2017
Publication title -
scientific reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.24
H-Index - 213
ISSN - 2045-2322
DOI - 10.1038/s41598-017-07590-1
Subject(s) - catalysis , oxide , graphene , reusability , environmentally friendly , titanium , mineralization (soil science) , chemistry , chemical engineering , heterogeneous catalysis , inorganic chemistry , materials science , organic chemistry , nanotechnology , ecology , software , computer science , nitrogen , engineering , biology , programming language
An efficient and environmentally friendly method was designed for the oxidation of sulfides to sulfoxides with a recyclable, carbon-skeleton-based heterogeneous catalyst developed by titanium sulfate [Ti(SO 4 ) 2 ] mineralization on the surface of graphene oxide foam [Ti(SO 4 ) 2 @GOF] by using 30 wt% H 2 O 2 as oxidant. Several different substituted sulfides were examined to explore the scope of substrates of the selective oxidation. The excellent reusability and durability of Ti(SO 4 ) 2 @GOF was demonstrated by recycling experiments and the catalyst was further applied in the preparation of pantoprazole sodium in a one-pot process.