Category: 17877-23-5

Barik, Chandan Kr published the artcileRuthenacyclic Carbamoyl Complexes: Highly Efficient Catalysts for Organosilane Hydrolysis, Recommanded Product: Triisopropylsilanol, the publication is European Journal of Inorganic Chemistry (2018), 2018(46), 4982-4986, database is CAplus.

The ruthenacyclic carbamoyl complexes [RuX{2-NHC(O)C₅H₃NR}(CO)₂(NCMe)] (R = H and Me; X = Br and SC₆H₃-o,o-Me₂) are excellent catalysts for the hydrolysis of organosilanes, particularly towards primary silanes, generating H under ambient conditions within seconds. These complexes are structural mimics of the [Fe]-hydrogenase active site and like the natural enzyme, a labile ligand at the 6th coordination site is essential to the catalytic activity.

European Journal of Inorganic Chemistry published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Recommanded Product: Triisopropylsilanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Hirano, Tomohiro published the artcileSyndiotactic- and heterotactic-specific radical polymerizations of N-n-propyl-α-fluoroacrylamide and phase-transition behaviors of aqueous solutions of poly(N-n-propyl-α-fluoroacrylamide), Formula: C9H22OSi, the publication is Journal of Polymer Science, Part A: Polymer Chemistry (2012), 50(12), 2471-2483, database is CAplus.

Radical polymerization of N-n-propyl-α-fluoroacrylamide (NNPFAAm) was studied in several solvents at low temperatures in the presence or absence of Lewis bases, Lewis acids, alkyl alcs., silyl alcs., or fluorinated alcs. Different effects of solvents and additives on stereospecificity were observed in the radical polymerizations of NNPFAAm and its hydrocarbon analogs such as N-isopropylacrylamide (NIPAAm) and N-n-propylacrylamide (NNPAAm); for instance, syndiotactic (and heterotactic) specificities were induced in radical polymerization of NNPFAAm in polar solvents (and in toluene in the presence of alkyl and silyl alcs.), whereas isotactic (and syndiotactic) specificities were induced in radical polymerizations of the hydrocarbon analogs under the corresponding conditions. In contrast, heterotactic specificity induced by fluorinated alcs. was further enhanced in radical polymerization of NNPFAAm. The effects of stereoregularity on the phase-transition behaviors of aqueous solutions of poly(NNPFAAm) were also studied. Different tendencies in stereoregularity were observed in aqueous solutions of poly(NNPFAAm)s from those in solutions of the hydrocarbon analogs such as poly(NIPAAm) and poly (NNPAAm). The polymerization behavior of NNPFAAm and the phase-transition behavior of aqueous poly(NNPFAAm) are discussed based on possible fluorine-fluorine repulsion between the monomer and propagating chain-end, and neighboring monomeric units. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012.

Journal of Polymer Science, Part A: Polymer Chemistry published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Formula: C9H22OSi.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Hirose, Yuta published the artcileStereoselective synthesis of the A-ring of armatol A from a bromo-substituted chiral building block based on Ireland-Claisen rearrangement and ring-closing olefin metathesis, Product Details of C9H22OSi, the publication is Heterocycles (2015), 91(1), 76-103, database is CAplus.

The stereoselective synthesis of the A-ring (I) of armatol A, a natural polycyclic ether triterpene from the red alga Chondria armata, was achieved in a non-biomimetic way. The synthesis employed Ireland-Claisen rearrangement of an ester, prepared from a bromo-substituted chiral building block, for the construction of C6 and C7 stereocenters and a relay ring-closing olefin metathesis for the seven-membered ring formation.

Heterocycles published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Product Details of C9H22OSi.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Hreczycho, Grzegorz published the artcileA new catalytic approach to germasiloxanes, Product Details of C9H22OSi, the publication is Tetrahedron Letters (2011), 52(1), 74-76, database is CAplus.

A new ruthenium(0) complex catalyzed coupling reaction of silanols with vinylgermanes leading to SiO-Ge bond formation with the evolution of ethylene is described. Under optimum conditions the catalytic O-germylation of silanols gives exclusively germasiloxanes.

Tetrahedron Letters published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Product Details of C9H22OSi.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Liang Teo, Alan Kay published the artcileA novel iron complex for highly efficient catalytic hydrogen generation from the hydrolysis of organosilanes, Application of Triisopropylsilanol, the publication is Chemical Communications (Cambridge, United Kingdom) (2014), 50(54), 7191-7194, database is CAplus and MEDLINE.

Hydrolytic oxidation of organosilanes based on an iron catalyst is described for the first time. The novel iron complex, [Fe(C₆H₅N₂O)(CO)(MeCN)₃][PF₆], exhibits excellent mediating power in the catalytic hydrolysis of organosilanes to produce dihydrogen and organosilanols with turnover numbers approaching 10⁴ and turnover frequencies in excess of 10² min^-1 under ambient conditions.

Chemical Communications (Cambridge, United Kingdom) published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Application of Triisopropylsilanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Gotz, Tobias published the artcileMolecular Scissors for Tailor-Made Modification of Siloxane Scaffolds, Related Products of alcohols-buliding-blocks, the publication is Chemistry – A European Journal (2022), 28(2), e202103531, database is CAplus and MEDLINE.

The controlled design of functional oligosiloxanes is an important topic in current research. A consecutive Si-O-Si bond cleavage/formation using siloxanes that are substituted with 1,2-diaminobenzene derivatives acting as mol. scissors is presented. The method allows to cut at certain positions of a siloxane scaffold forming a cyclic diaminosilane or -siloxane intermediate and then to introduce new functional siloxy units. The procedure could be extended to a direct one-step cleavage of chlorooligosiloxanes. Both siloxane formation and cleavage proceed with good to excellent yields, high regioselectivity, and great variability of the siloxy units. Control of the selectivity is achieved by the choice of the amino substituent. Insight into the mechanism was provided by low temperature NMR studies and the isolation of a lithiated intermediate.

Chemistry – A European Journal published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Varga, Vojtech published the artcileEvaluation of the Oxygen π-Donation in Permethyltitanocene Silanolates and Alcoholates, Application of Triisopropylsilanol, the publication is Organometallics (2009), 28(6), 1748-1757, database is CAplus.

[Cp^*₂Ti(III)OR’] where R’ is ⁱPr₃Si (2), Ph₃Si (3), (^tBuO)₃Si (4), (c-C₅H₉)₇Si₈O₁₂ (5), and ^tBu (6) were prepared by protolysis of the Ti-methylene bond in singly tucked-in permethyltitanocene [Cp^*Ti(III)(η⁵:η¹-C₅Me₄CH₂)] with the resp. silanols or tert-BuOH. Their electronic transitions from the ground-state mols. to their 1st excited states (dominantly a 1a₁ → b₂ transition) occur in the range 1300-1800 nm, originating from π-donation from O lone pair electrons to the Ti-O bond (as found by Andersen et al. J. Am. Chem. Soc. 1996, 118, 1719). The x-ray crystal structures of 2–4 and 6 revealed that steric effects of substituents R’ change the geometry of the titanocene moiety only negligibly. DFT calculations of the 1a₁ → b₂ transition for optimized structures of 2, 4, 6, [Cp^*₂Ti(III)OH] (7), and [Cp^*₂Ti(III)OMe] (8) reproduced the dependence of exptl. λ(1a₁ → b₂) on electron donation/attraction properties of R’ and revealed that the decrease of the O π-donation is accompanied with an increase in neg. natural charge on the OR’ group. The observed increase of λ_exp(1a₁ → b₂) in the order of substituents R’, Me < ^tBu < H < Ph < SiⁱPr₃ < SiPh₃ approx. Si(O^tBu)₃ < (c-C₅H₉)₇Si₈O₁₂ (SIPOSS cluster), thus indicates the decrease of Ti-O π-interaction with an increased polarity of the Ti-O bond. The DFT calculations of 7 with the naturally bent and collinear Ti-O-H conformation showed only a small effect of bending on the O π-donation.

Organometallics published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C19H17N2NaO4S, Application of Triisopropylsilanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Huffman, Benjamin J. published the artcileStereodivergent Attached-Ring Synthesis via Non-Covalent Interactions: A Short Formal Synthesis of Merrilactone A, Formula: C9H22OSi, the publication is Angewandte Chemie, International Edition (2022), 61(3), e202114514, database is CAplus and MEDLINE.

A strategy to control the diastereoselectivity of bond formation at a prochiral attached-ring bridgehead was reported. An unusual stereodivergent Michael reaction relied on basic vs. Lewis acidic conditions and non-covalent interactions to control re- vs. si- facial selectivity en route to fully substituted attached-rings. This divergency reflected differential engagement of one rotational isomer of the attached-ring system. The successful synthesis of an erythro subtarget diastereomer ultimately leads to a short formal synthesis of merrilactone A.

Angewandte Chemie, International Edition published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Formula: C9H22OSi.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Dhiman, Mahak published the artcileOrganosilane oxidation with a half million turnover number using fibrous nanosilica supported ultrasmall nanoparticles and pseudo-single atoms of gold, Name: Triisopropylsilanol, the publication is Journal of Materials Chemistry A: Materials for Energy and Sustainability (2017), 5(5), 1935-1940, database is CAplus.

The combination of ultrasmall nanoparticles and pseudo-single atoms of gold (Au) and fibrous nanosilica (KCC-1) functionalized with 3-aminopropyltriethoxysilane (APTS) enabled the design of KCC-1-APTS/Au nanocatalysts with very high turnover numbers (TONs). KCC-1-APTS/Au catalyzed the oxidation of organosilanes to silanols, with a TON of approx. half a million (591 000 for dimethylphenyl silane as a model substrate). Addnl., the figure-of-merit (FOM), which provides an integrated view of the rate of the reaction, the energy required, the reaction scale and the recyclability of the catalysts, was 633 mmol h^-1 K^-1. KCC-1-APTS/Au also catalyzed two addnl. challenging reactions, the alcoholysis of silane and the hydrosilylation of aldehydes, with very high TONs. These characteristics make KCC-1-APTS/Au a versatile nanocatalyst.

Journal of Materials Chemistry A: Materials for Energy and Sustainability published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Name: Triisopropylsilanol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yasin Tabatabaei Dakhili, S. published the artcileRecombinant silicateins as model biocatalysts in organosiloxane chemistry, Computed Properties of 17877-23-5, the publication is Proceedings of the National Academy of Sciences of the United States of America (2017), 114(27), E5285-E5291, database is CAplus and MEDLINE.

The family of silicatein enzymes from marine sponges (phylum Porifera) is unique in nature for catalyzing the formation of inorganic silica structures, which the organisms incorporate into their skeleton. However, the synthesis of organosiloxanes catalyzed by these enzymes has thus far remained largely unexplored. To investigate the reactivity of these enzymes in relation to this important class of compounds, their catalysis of Si-O bond hydrolysis and condensation was investigated with a range of model organosilanols and silyl ethers. The enzymes’ kinetic parameters were obtained by a high-throughput colorimetric assay based on the hydrolysis of 4-nitrophenyl silyl ethers. These assays showed unambiguous catalysis with k_cat/K_m values on the order of 2-50 min^-1 μM^-1. Condensation reactions were also demonstrated by the generation of silyl ethers from their corresponding silanols and alcs. Notably, when presented with a substrate bearing both aliphatic and aromatic hydroxy groups the enzyme preferentially silylates the latter group, in clear contrast to nonenzymic silylations. Furthermore, the silicateins are able to catalyze transetherifications, where the silyl group from one silyl ether may be transferred to a recipient alc. Despite close sequence homol. to the protease cathepsin L, the silicateins seem to exhibit no significant protease or esterase activity when tested against analogous substrates. Overall, these results suggest the silicateins are promising candidates for future elaboration into efficient and selective biocatalysts for organosiloxane chem.

Proceedings of the National Academy of Sciences of the United States of America published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C7H8BBrO3, Computed Properties of 17877-23-5.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts