1, 3-Dibromo-5, 5-dimethylhydantoin (DBH) as a mild and efficient catalyst for chemoselective thioacetalization of carbonyl compounds and dethioacetalization under …
H Veisi, M Amiri, AH Hamidian… - … , Sulfur, and Silicon, 2010 - Taylor & Francis
Hydantoin bromide is an effective catalyst for chemoselective thioacetalization of aldehydes
in the presence of ketones under neutral conditions. In addition, a simple and efficient …
in the presence of ketones under neutral conditions. In addition, a simple and efficient …
[HTML][HTML] Silica-supported DABCO-tribromide: A recoverable reagent for oxidation of alcohols to the corresponding carbonyl compounds
FM Moghaddam, N Masoud, BK Foroushani… - Scientia Iranica, 2013 - Elsevier
Abstract In this study, 1, 4-diazabicyclo [2.2. 2] octane (DABCO) tribromide was immobilized
on silica support by using 3-chloro propyl trimethoxy silane to obtain a silica-supported …
on silica support by using 3-chloro propyl trimethoxy silane to obtain a silica-supported …
Deprotection of dithioacetals with 30% hydrogen peroxide catalyzed by tantalum (V) chloride–sodium iodide or niobium (V) chloride–sodium iodide
M Kirihara, T Noguchi, N Okajima, S Naito, Y Ishizuka… - Tetrahedron, 2012 - Elsevier
The reaction of dithioacetals with 30% hydrogen peroxide in the presence of catalytic
amounts of tantalum (V) and iodide ion effectively produced carbonyl compounds in high …
amounts of tantalum (V) and iodide ion effectively produced carbonyl compounds in high …
Environmentally benign deprotection of dithioacetals using 30% hydrogen peroxide catalyzed by Fe (acac) 3 and sodium iodide
M Kirihara, S Suzuki, Y Ishizuka, K Yamazaki… - Tetrahedron …, 2013 - Elsevier
Environmentally benign deprotection of dithioacetals using 30% hydrogen peroxide
catalyzed by Fe(acac)3 and sodium iodide - ScienceDirect Skip to main contentSkip to …
catalyzed by Fe(acac)3 and sodium iodide - ScienceDirect Skip to main contentSkip to …
Silica phenyl sulfonic acid as a solid acid heterogeneous catalyst for chemoselective thioacetalization of carbonyl compounds and dethioacetalization under mild …
H Veisi, A Sedrpoushan, MA Zolfigol… - Journal of …, 2013 - Wiley Online Library
Silica phenyl sulfonic acid (SPSA) is an effective catalyst for chemoselective
thioacetalization of aldehydes in the presence of ketones under neutral conditions. In …
thioacetalization of aldehydes in the presence of ketones under neutral conditions. In …
Green Protocol for Synthesis of the 3, 5-disubstituted 1, 2, 4-thiadiazoles Using N-benzyl-DABCO-tribromide in Aqueous Media
H Zali Boeini - Journal of the Iranian Chemical Society, 2009 - Springer
A novel and simple method for rapid conversion of thioamides to the corresponding 1, 2, 4-
thiadiazole derivatives was developed. It was shown that, thioamides undergo clean and …
thiadiazole derivatives was developed. It was shown that, thioamides undergo clean and …
Facile deprotection of dithioacetals by using a novel 1, 4-benzoquinone/cat. NaI system
K Inamoto, T Yamada, S Kato, S Kikkawa, Y Kondo - Tetrahedron, 2013 - Elsevier
Abstract The combination of 1, 4-benzoquinone and a catalytic amount of NaI was found to
be effective for the deprotection of dithioacetals. The reactions proceeded efficiently under …
be effective for the deprotection of dithioacetals. The reactions proceeded efficiently under …
Mesoporous sBa-15 silica catalyst functionalized with phenylsulfonic acid groups (SbA-15-ph-So3h) as efficient nanocatalyst for chemoselective thioacetalization of …
A Sedrpoushan, H Ghazizadeh - Journal of Sulfur Chemistry, 2017 - Taylor & Francis
In this research a Nano acidic catalyst was prepared and its efficiency on thioacetalization of
carbonyl compounds was examined. For this aim we used modified SBA-15 as support …
carbonyl compounds was examined. For this aim we used modified SBA-15 as support …
[PDF][PDF] Solvent-free oxidative deprotection of 1, 3-dithianes and 1, 3-dithiolanes using poly (N, N'-dibromo-N-ethylbenzene-1, 3-disulfonamide), N, N, N', N' …
R Ghorbani-Vaghei, H Veisi - Arkivoc, 2009 - arkat-usa.org
A simple and efficient deprotection of 1, 3-dithianes and 1, 3-dithiolanes of aromatic,
aliphatic and α, β-unsaturated aldehydes and ketones in the solvent-free to the …
aliphatic and α, β-unsaturated aldehydes and ketones in the solvent-free to the …
Regioselective Bromination of Aromatic Amines and Phenols Using N-Benzyl-DABCO Tribromide
FM Moghaddam, D Zargarani - Synthetic Communications®, 2009 - Taylor & Francis
N-Benzyl-DABCO tribromide, a stable, solid organic ammonium tribromide, has been used
as a bromine source for the regioselective and high-yielding bromination of aromatic amines …
as a bromine source for the regioselective and high-yielding bromination of aromatic amines …