28153-24-4Relevant academic research and scientific papers
Formation of benzylidenes-diacetates catalyzed by activated zeolite "LZY-562" and clay (K10/ZnCl2): An unexpected functional selectivity
Dokari,Hammadi,Benferrah,Rachedi
, p. 1973 - 1976 (2015/12/01)
Activated zeolites LZY-562 and clay montmorillonite K10 at room temperature without solvent catalyzes the synthesis of benzylidenesdiacetates from carbonyl compounds. A chemoselectivity was observed between aldehydes and ketones, between the different aldehydes and ketones as well.
Polystyrene-supported, Al(OTf)3-catalyzed chemoselective synthesis of acylals from aldehydes
Boroujeni, Kaveh Parvanak
scheme or table, p. 277 - 284 (2011/03/20)
Cross-linked polystyrene-supported aluminium triflate [Ps-Al(OTf)3] has been shown to be a mild, efficient, and chemoselective heterogeneous Lewis acid catalyst for acetylation of aldehydes with acetic anhydride. The catalyst can be recovered simply and reused efficiently at least five times without any noticeable loss of catalytic activity. Copyright Taylor & Francis Group, LLC.
A simple and efficient method for the synthesis of gem-diacetates from aldehydes and ketones catalysed by gallium triiodide
Sun, Peipei,Hu, Zhixin
, p. 659 - 660 (2007/10/03)
Aldehydes or ketones reacted with acetic anhydride in dichloromethane at ambient temperature to produce gem-diacetates in good to excellent yields in the presence of gallium triiodide, which was generated in situ from gallium and iodine. This catalyst was also useful for the deprotection of carbonyl compounds in the presence of water.
Zn(OTf)2.6H2O catalysed acylation of aldehydes: Preparation of 1,1-diacetates and α-chloroalkyl esters
Su, Weike,Can, Jin
, p. 88 - 90 (2007/10/03)
1,1-Diacetates (acylals) and α-chloroalkyl esters were prepared from carbonyl compounds with acylating reagents in the presence of 5% mol hexaaqua zinc triflate [Zn(OTf)2.6H2O] with good yields under mild reaction conditions.
Reductive esterification of aromatic aldehydes using Zn/Ac 2O/imidazole or Zn/Yb(OTf)3/(RCO)2O system
Hirao, Toshikazu,Santhitikul, Sirida,Takeuchi, Hiroki,Ogawa, Akiya,Sakurai, Hidehiro
, p. 10147 - 10152 (2007/10/03)
Benzaldehydes are reduced by metallic zinc in the presence of Ac 2O and imidazole, giving the corresponding benzyl acetates in good yields. Reductive esterification of aromatic aldehydes is also carried out via gem-diacetoxy compounds. Carbonyl compounds are readily converted to the gem-diacyloxy compounds in excellent yields on treatment with 2molar amounts of acid anhydride and 10mol% of Yb(OTf)3 in MeCN at room temperature. Thus-formed diacyloxy compounds derived from aromatic aldehydes are reduced in situ by metallic zinc to afford the corresponding esters.
Sulfated Zirconia: an Efficient Catalyst for the Synthesis of 1,1-Diacetates from Aldehydes and Ketones
Raju, Satya V. N.
, p. 68 (2007/10/03)
A variety of aldehydes and ketones react with acetic anhydride in the presence of catalytic amounts of solid sulfated zirconia to afford the corresponding 1,1-diacetates in excellent yields.
