The desulfurization of thioacetals and thioethers by a pyridine-derived electron donor is described. This methodology provides efficient access to the reduced products in high yields and does not require the use of transition-metals, elemental alkali-metals, or hydrogen atom donors.
Electrolytic partial fluorination of organic compounds. 20. Electrosynthesis of novel hypervalent iodobenzene chlorofluoride derivatives and its application to indirect anodic gem-difluorination
作者:Toshiyasu Fujita、Toshio Fuchigami
DOI:10.1016/0040-4039(96)00951-3
日期:1996.7
Electrosynthesis of novelhypervalentiodobenzenechlorofluorides was successfully performed for the first time and it was demonstrated that p-methoxyiodobenzene chlorofluoride could be used as a mediator for indirectanodicgem-difluorination of dithioacetals.
Photoreduction of aliphatic and aromatic thioketals: new access to the reduction of carbonyl groups by a desulfurization chain process
作者:Gabriela Oksdath-Mansilla、Juan E. Argüello、Alicia B. Peñéñory
DOI:10.1016/j.tetlet.2012.12.118
日期:2013.3
Aromatic and aliphatic ketones can be converted to methylene groups by desulfurization of the corresponding dithioketals in moderate to good yields. The reaction proceeds by photoinduced electron transfer from tert-BuOK in the presence of 1,4-dicyclohexadiene as hydrogen atom donor. The diene is able to trigger and keep a chain process by hydrogen transfer-proton transfer reactions. (c) 2013 Elsevier Ltd. All rights reserved.
Electrolytic Partial Fluorination of Organic Compounds. 14. The First Electrosynthesis of Hypervalent Iodobenzene Difluoride Derivatives and Its Application to Indirect Anodic gem-Difluorination
作者:Toshio Fuchigami、Toshiyasu Fujita
DOI:10.1021/jo00103a003
日期:1994.12
The electrosynthesis of hypervalent iodobenzene difluorides was accomplished by anodic oxidation of p-nitro- and p-methoxyiodobenzenes with Et(3)N.3HF in anhydrous acetonitrile, and p-methoxyiodobenzene difluoride was used as a mediator for indirect anodic gem-difluorination of dithioketals.
Fuchigami Toshio, Fujita Toshiyasu, J. Org. Chem, 59 (1994) N 24, S 7190-7192