538-86-3Relevant articles and documents
The Isotope Effects in the Reactions of Phenylcarbene with Alcoholic Matrices
Tomioka, Hideo,Ozaki, Yasuji,Izawa, Yasuji
, p. 1239 - 1240 (1983)
Product analysis studies on the reaction of phenylcarbene in deuterated alcoholic matrices at 77 K revealed that isotope effect on O-H (D) insertion is very small while substantial isotope effect was observed for C-H (D) insertion.
Billups et al.
, p. 7878,7879 (1973)
New concept for the preparation of potassium sodides: The use of hexane as a non-polar solvent
Grobelny, Zbigniew,Stolarzewicz, Andrzej,Morejko-Buz, Barbara,Winiarski, Antoni
, p. 2147 - 2150 (2003)
NaK alloy in contact with 15-crown-5 hexane solution became potassium sodide K+(15-crown-5)2Na-. After the evaporation of hexane the crystalline solid product was analyzed by X-ray diffraction and the lattice parameters were calculated. The potassium sodide thus obtained could be easily dissolved in tetrahydrofuran. A deep blue solution containing sodium anions and complexed potassium cations was formed with a very low concentration of solvated electrons, i.e. of the order of 10-7M. Potassium anions were not detected in this case. A new crystalline potassium sodide K+(DCH-24-crown-8)2Na- was obtained using NaK alloy and dicyclohexano-24-crown-8 hexane solution.
Solvolysis of benzyl phenyl ether in high-temperature aqueous methanol solution under high-pressure carbon dioxide
Taniguchi, Kenkichi,Nanao, Hidetaka,Sato, Osamu,Yamaguchi, Aritomo,Shirai, Masayuki
, p. 1658 - 1664 (2021/03/09)
Alcoholysis of benzyl phenyl ether to various aromatic compounds was studied in high-temperature aqueous methanol solution under high-pressure carbon dioxide conditions. The products formed included benzyl methyl ether, benzyl alcohol, phenol and toluene. As high as 70.7 ± 0.2% yield of monocyclic aromatic hydrocarbon with 16.1 ± 0.3% yield of benzyl methyl ether was obtained by treating benzyl phenyl ether with an aqueous solution with 0.2 molar fraction of methanol, under 17.7 MPa carbon dioxide for 1 h at 573 K.
Co2(CO)8-catalyzed reactions of acetals or lactones with hydrosilanes and carbon monoxide. A new access to the preparation of 1,2-diol derivatives through siloxymethylation
Chatani, Naoto,Fujii, Satoru,Kido, Yoichi,Nakayama, Yasuhide,Kajikawa, Yasuteru,Tokuhisa, Hideo,Fukumoto, Yoshiya,Murai, Shinji
, p. 81 - 90 (2021/02/05)
The Co2(CO)8-catalyzed reaction of acetals with hydrosilanes and CO under mild reaction conditions (an ambient temperature under an ambient CO pressure), leading to the production of vicinal diols is reported. A siloxymethyl group can be introduced via the cleavage of one of two alkoxy groups in the acetal. The effects of the types of hydrosilanes, acetals, solvents, and reaction temperatures on the yield of siloxymethylation products were examined in detail. The reactivity for hydrosilanes is as follows; HSiMe3 > HSiEtMe2 > HSiEt2Me > HSiEt3. Hemiacetal esters are more reactive than dimethyl acetals. The polarity of the solvent used also has a significant effect on both the course of the reaction as well as the reaction rate. The site-selective siloxymethylation can be achieved in the case of cyclic acetals such as tetrahydrofuran (THF) and tetrahydropyrane (THP) derivatives, depending on the nature of the oxygen substituent attached adjacent to the oxygen atom in the ring. When 2-alkoxy THF or THP derivatives are used as substrates, the siloxymethylation takes place with cleavage of the ring C-O bond. In contrast, the reaction of 2-acetoxy THF or THP derivatives results in siloxymethylation with the cleavage of C-OAc bond. The ring-opening siloxymethylation of lactones was also examined.
Selective catalytic degradation of a lignin model compound into phenol over transition metal sulfates
Wu, Min-Ya,Lin, Jian-Tao,Xu, Zhuang-Qin,Hua, Tian-Ci,Lv, Yuan-Cai,Liu, Yi-Fan,Pei, Rui-Han,Wu, Qiong,Liu, Ming-Hua
, p. 3013 - 3019 (2020/02/03)
Transition metal salts were employed as the catalysts to improve the selective degradation of the α-O-4 lignin model compound (benzyl phenyl ether (BPE)) in the solvothermal system. The results concluded that most of the transition metal salts could enhan
