An efficient and green procedure for the preparation of acylals from aldehydes catalyzed by alum [KAl(SO4)212H2O]
Alum [KAl(SO4)2-12H2O] is an inexpensive, efficient, non-toxic and mild catalyst for the preparation of acylals from aromatic and heteroaryl aldehydes with acetic anhydride at room temperature under solvent-free conditions
Shelke, Kiran,Sapkal, Suryakant,Kategaonkar, Amol,Shingate, Bapurao,Shingare, Murlidhar S.
experimental part
p. 109 - 112
(2010/08/06)
Microwave-induced protection and deprotection of 4-oxo-(4H)-1-benzopyran-3-carbaldehydes catalysed by Envirocat EPZ10R
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Shindalkar, Santosh S.,Madje, Balaji R.,Shingare, Murlidhar S.
p. 43 - 44
(2007/10/03)
Ceric ammonium nitrate catalyzed efficient and chemoselective method for protection and deprotection of 4-oxo-4H-1-benzopyran-3-carbaldehydes
A chemoselective, solvent-free, mild and efficient method for the synthesis of acylals and their deprotection to 4-oxo-4H-1-benzopyran-3-carbaldehydes catalyzed by ceric ammonium nitrate (CAN) are carried out in good yields and all compounds 2a-h are characterized by IR, 1H NMR and 13C NMR spectral data.
Shindalkar,Madje,Hangarge,Shingare
p. 2409 - 2411
(2007/10/03)
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