Showing 1-30 of 44 results for "208930"
Wayne Pilgrim et al.
The Journal of organic chemistry, 75(20), 6747-6755 (2010-09-15)
The quantification of factors that influence both rates and stereoselectivity of anomerization reactions catalyzed by SnCl(4) and TiCl(4) and how this has informed the synthesis of α-O- and α-S-glycolipids is discussed. The SnCl(4)-catalyzed anomerization reactions of β-S- and β-O-glycosides of...
Min Wang et al.
Preparative biochemistry & biotechnology, 41(1), 1-6 (2011-01-14)
An efficient three-component, one-pot synthesis of β-amino carbonyl compounds from aromatic ketones, aromatic aldehydes, and aromatic amines using tin tetrachloride at room temperature in ethanol is described. The advantages of the new method are good yields (62-96%), simple workup, and...
Qingbing Wang et al.
Carbohydrate research, 343(17), 2989-2991 (2008-10-07)
Aldopyranose peracetates react with thionyl chloride and tin tetrachloride, producing the corresponding peracylated aldopyranosyl chlorides in very good to excellent yields (88-100%) with exclusive alpha-anomeric selectivity and short reaction times. The use of peracylated sugars as the substrate in large...
Gerry A Griffith et al.
Journal of the American Chemical Society, 128(40), 13130-13141 (2006-10-05)
Difluorinated alkenoate ethyl 3,3-difluoro-2-(N,N-diethylcarbamoyloxy)-2-propenoate reacts rapidly and in high yield with furan and a range of substituted furans in the presence of a tin(IV) catalyst. Non-fluorinated congener 2-(N,N-diethylcarbamoyloxy)-2-propenoate fails to react at all under the same conditions. These reactions have...
L Malaguarnera et al.
Journal of cellular biochemistry, 93(1), 197-206 (2004-09-08)
The pituitary hormone prolactin (PRL) is a multifunctional polypeptide which exerts a role on cell proliferation and may also contribute to cell differentiation. PRL is also produced by immune cells and is regarded as a key component of the neuroendocrine-immune...
Tin (IV) chloride catalyzed cycloaddition reactions between 3-ethoxycyclobutanones and allylsilanes.
Matsuo J I, et al.
Organic Letters, 11(17), 3822-3825 (2009)
Iris K M Yu et al.
Bioresource technology, 237, 222-230 (2017-01-24)
This study aimed to maximize the valorization of bread waste, a typical food waste stream, into hydroxymethylfurfural (HMF) by improving our kinetic understanding. The highest HMF yield (30mol%) was achieved using SnCl
A Highly Stereoselective Synthesis of α-Glucosides from 1-O-Acetyl Glucose by Use of Tin (IV) Chloride?Silver Perchlorate Catalyst System.
Mukaiyama T, et al.
Chemistry Letters (Jpn), 20(4), 533-536 (1991)
Yasuyuki Kita et al.
The Journal of organic chemistry, 71(14), 5191-5197 (2006-07-01)
The Lewis acid-promoted rearrangement of 2,2,3,3-tetrasubstituted 2,3-epoxy alcohols with several kinds of protecting groups was investigated. When SnCl4 is used as a Lewis acid, the reaction proceeds in a regio- and stereo-controlled manner to afford two types of carbonyl compounds...
Sean P Bew et al.
Chemical communications (Cambridge, England), (9)(9), 975-977 (2007-02-22)
We report the first efficient synthesis of para-tert-butylcalix[8]arene and -[9]arene via an exceptionally straightforward innovative protocol that takes place at ambient temperature, employing readily available tin(IV) chloride and s-trioxane.
Leo A Paquette et al.
The Journal of organic chemistry, 68(22), 8614-8624 (2003-10-25)
The concept of spirocyclic restriction, when generically applied to nucleoside mimics, allows for the preparation of diastereomeric pairs carrying either a syn- or anti-oriented hydroxyl at C-5'. Reported herein are convenient synthetic routes to enantiomerically pure 1-oxaspiro[4.4]nonanes featuring fully dihydroxylated...
Glycosidation reactions of silyl ethers with conformationally inverted donors derived from glucuronic acid: stereoselective synthesis of glycosides and 2-deoxyglycosides.
Monika Poláková et al.
Angewandte Chemie (International ed. in English), 43(19), 2518-2521 (2004-05-06)
Gary B Evans et al.
The Journal of organic chemistry, 69(6), 2217-2220 (2004-04-03)
Promotion by Lewis acid of the addition of some aryllithiums to a carbohydrate-based imine, which has allowed a more facile synthesis of some imino-C-nucleoside analogues, is described. Use of the corresponding nitrone does not assist in some cases, but lithiated...
Colin O'Brien et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 13(3), 902-909 (2006-11-07)
The reaction of silylated nucleophiles with 6,1-anhydroglucopyranuronic acid (glucuronic acid 6,1-lactones) catalysed by tin(IV) chloride provides 1,2-trans or 1,2-cis (deoxy)glycosides in a manner dependent on the donor structure. The alpha-glycoside was obtained for reactions of the donor with the 2-acyl...
Seong Sik Shin et al.
Nature communications, 6, 7410-7410 (2015-06-23)
Fabricating inorganic-organic hybrid perovskite solar cells (PSCs) on plastic substrates broadens their scope for implementation in real systems by imparting portability, conformability and allowing high-throughput production, which is necessary for lowering costs. Here we report a new route to prepare...
Annika Björn et al.
Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA, 29(12), 1327-1336 (2011-03-09)
There is increasing concern regarding the fate of methyltins in the environment, particularly since large amounts of polyvinyl chloride (PVC) plastics are deposited in landfills. The potential transformation of methyltin chlorides and stannic chloride in landfills was investigated, by incubating...
Tin (IV) chloride-promoted synthesis of 4-aminopyridines and 4-aminoquinolines.
Veronese A C, et al.
Tetrahedron, 51(45), 12277-12284 (1995)
Céline Hubert et al.
Faraday discussions, 181, 139-146 (2015-04-30)
Silica particles with a controlled number of entropic patches, i.e. dimples, are synthesized through the growth of the silica core of binary multipods that have been produced by a seeded-growth emulsion polymerization reaction. Transmission electron microscopy studies indicate that the...
Manabu Nakazono et al.
Clinica chimica acta; international journal of clinical chemistry, 436, 27-34 (2014-05-13)
Various styrylbenzene compounds were synthesized and evaluated as mainly Aβ amyloid sensors. These compounds, however, cannot be used for detecting amyloid deposition in peripheral nerves because of the inherent sensitivity of the compounds. These compounds often generate false positives especially...
Tin (IV) Chloride.
Castellino S, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. null
Andreas T Messmer et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(47), 14989-14995 (2012-10-04)
Determining the structure of reactive intermediates is the key to understanding reaction mechanisms. To access these structures, a method combining structural sensitivity and high time resolution is required. Here ultrafast polarization-dependent two-dimensional infrared (P2D-IR) spectroscopy is shown to be an...
Isabelle Bonhoure et al.
Environmental science & technology, 37(10), 2184-2191 (2003-06-06)
In this study, the immobilization mechanisms of Sn(IV) onto calcium silicate hydrates (C-S-H) and hardened cement paste (HCP) have been investigated by combining wet chemistry experiments with X-ray absorption spectroscopy (XAS). Evidence is presented which demonstrates the formation of a...
Guang Xian Pei et al.
Physical chemistry chemical physics : PCCP, 20(15), 9806-9811 (2018-04-06)
Hematite (α-Fe2O3) has been extensively studied as a promising candidate for photoelectrochemical water splitting; however its overall efficiency is still relatively low. Doping is believed to be efficient in enhancing the photoactivity, while direct evidence for the promoted charge carrier...
Fang Yang et al.
The Journal of organic chemistry, 76(20), 8329-8335 (2011-09-07)
Highly substituted indole derivatives bearing alkyl and aryl moieties can be prepared by Sc(OTf)(3)-catalyzed Friedel-Crafts alkenylation of 5-(arylamino)pent-3-yn-2-ones. In addition, a method for regioselective hydrochlorination of 5-(arylamino)pent-3-yn-2-ones mediated by SnCl(4) in moderate to good yields (up to 84%) has been...
Tilak Chandra et al.
Nucleosides, nucleotides & nucleic acids, 29(2), 132-143 (2010-04-15)
A convenient and efficient method for deprotection of N-(trimethyl)silylethoxymethyl (SEM) groups from thymidine dinucleoside and dinucleotide has been achieved. The SEM groups were easily removed in excellent yields from protected nucleosides, dinucleosides, and dinucleotides.
Evangelina Repetto et al.
Bioorganic & medicinal chemistry, 17(7), 2703-2711 (2009-03-14)
Thiodisaccharides having beta-D-Galf or alpha-L-Araf units as non-reducing end have been synthesized by the SnCl(4)- or MoO(2)Cl(2)-promoted thioglycosylation of per-O-benzoyl-D-galactofuranose (1), its 1-O-acetyl analogue 4, or per-O-acetyl-alpha-L-arabinofuranose (16) with 6-thioglucose or 6-thiogalactose derivatives. After convenient removal of the protecting groups...
Facile Syntheses of C-Glycosides of Aromatic Compounds.
Ohrui H, et al.
Agricultural and Biological Chemistry, 36(9), 1651-1653 (1972)
Ihor Kulai et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(63), 16066-16077 (2017-08-31)
Eight alkyl triarylstannanecarbodithioates were synthesized starting from the corresponding triarylstannyl chlorides. They were fully characterized by IR and
Tin (IV) Chloride.
Castellino S, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis null
Tin (IV) chloride-chiral pyrogallol derivatives as new Lewis acid-assisted chiral Br?nsted acids for enantioselective polyene cyclization.
Kumazawa K, et al.
Organic Letters, 6(15), 2551-2554 (2004)

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