96285-96-0Relevant academic research and scientific papers
Synthesis of pinacol acetals catalyzed by (2-carboxyphenyl)diphenylphosphonium bromide
Huang, Wenhua,Xu, Ning
supporting information, p. 2133 - 2138 (2017/10/31)
(2-Carboxyphenyl)diphenylphosphonium bromide that is readily prepared from commercial 2-(diphenylphosphino)benzoic acid and HBr is an efficient catalyst for the synthesis of pinacol acetals from a variety of aldehydes at room temperature.
Aromatic Nitration under Neutral Conditions Using Nitrogen Dioxide and Ozone as the Nitrating Agent. Application to Aromatic Acetals and Acylal
Suzuki, Hitomi,Yonezawa, Shuji,Mori, Tadashi
, p. 1535 - 1544 (2007/10/03)
Cyclic acetals derived from aromatic carbonyl compounds can be nitrated smoothly with nitrogen dioxide in ice-cooled dichloromethane or acetonitrile in the presence of ozone and magnesium oxide to give ortho- and para-nitro derivatives as the major product in good combined yields, the acetal ring as a protective group remaining almost intact.An acylal derived from benzaldehyde similarly undergoes nitration on the aromatic ring to give an isomeric mixture of three nitro compounds, in which the ortho and meta isomers predominate, while aromatic orthoesters are rapidly decomposed to give simply the parent esters.Ring nitration under neutral conditions has been interpreted in terms of a nonclassical mechanism, in which nitrogen trioxide is involved as the initial electrophile.
ELECTRONIC EFFECT OF 1,3-DIOXACYCLANE SUBSTITUENTS IN NITROBENZALDEHYDE ACETALS
Ovchinnikov, V. V.,Evstaf'eva, Yu. G.,Latypova, V. Z.,Bogoveeva, G. A.,Cherkasov, R. A.
, p. 196 - 199 (2007/10/02)
The electronic effect of 1,3-dioxacyclane substituents in p- and m-nitrobenzaldehyde acetals was studied by IR spectroscopy and electrochemical reduction.In the investigated compounds the electron-withdrawing effect of the 1,3-dioxolane fragments is more
