405914-97-8Relevant articles and documents
An efficient method for thioacetalization of carbonyl compounds in the presence of a catalytic amount of benzyltriphenylphosphonium tribromide under solvent-free conditions
Hajipour, Abdol R.,Pourmousavi, Seied A.,Ruoho, Arnold E.
, p. 921 - 937 (2007)
A variety of carbonyl compounds have been successfully converted to the corresponding thioacetal derivatives in good to excellent yields on the reaction of carbonyl compounds with 1,2-ethanedithiole, 1,3-propanedithiol, and ethanethiol in the presence of
Efficient method for thioacetalization of carbonyl compounds in the presence of a catalytic amount of benzyltriphenylphosphonium tribromide (BTPTB) under solvent-free conditions
Hajipour, Abdol Reza,Pourmousavi, Seied A.,Ruoho, Arnold E.
, p. 2548 - 2566 (2008/12/22)
A variety of carbonyl compounds have been successfully converted to the corresponding thioacetal derivatives in good to excellent yields on reaction of carbonyl compounds with 1,2-ethanedithiole, 1,3-propanedithiol, and ethylthiol in the presence of a cat
Oxidative deprotection of 1,3-dithiane group using NaClO2 and NaH2PO4 in aqueous methanol
Ichige, Takahiro,Miyake, Annu,Kanoh, Naoki,Nakata, Masaya
, p. 1686 - 1690 (2007/10/03)
The 1,3-dithiane group was oxidatively deprotected under the conditions of sodium chlorite, sodium dihydrogenphosphate, and 2-methyl-2-butene in 3:1 methanol-water at room temperature in good yield.
A simple and practical synthetic protocol for acetalisation, thioacetalisation and transthioacetalisation of carbonyl compounds under solvent-free conditions
Khan, Abu T.,Mondal, Ejabul,Ghosh, Subrata,Islam, Samimul
, p. 2002 - 2009 (2007/10/03)
A wide variety of carbonyl compounds can be converted smoothly to the corresponding acetals on treatment with alcohols or diols and triethyl orthoformate in the presence of a catalytic amount of (bromodimethyl)sulfonium bromide at room temperature. Similarly, various carbonyl compounds can be transformed into the corresponding dithioacetals on reaction with thiol or dithiols at room temperature by employing the same catalyst without any solvent. Moreover, O,O-acetals can also be converted into the corresponding dithioacetals under identical conditions. Some of the major advantages are mild reaction conditions, a high degree of efficiency, compatibilty with other protecting groups and the lack of solvents, particularly for thioacetalisation. In addition, no brominations occur at the double bond or α to the keto position or even in the aromatic ring under these experimental conditions. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004.
Dioxolane-to-bridged acetal-to-spiroketal via ring-closing metathesis and rearrangement: A novel route to 1,7-dioxaspiro[5.5]undecanes
Keller, Valerie A.,Martinelli, Joseph R.,Strieter, Eric R.,Burke, Steven D.
, p. 467 - 470 (2007/10/03)
(Equation Presented) Several examples of 1,7-dioxaspiro[5.5]undecane spiroketal systems have been synthesized from the common bicyclic intermediate 1 via acid-catalyzed rearrangement. Intermolecular ketalization of C2 symmetric diene diol 3 wit
