- Iridium-Catalyzed ortho-C-H Borylation of Thioanisole Derivatives Using Bipyridine-Type Ligand
-
A simple iridium catalytic system was developed that allows for a variety of 2-borylthioanisoles to be easily synthesized via ortho-selective C-H borylation of thioanisole derivatives. Once introduced, boryl and methylthio groups were converted by palladium-catalyzed transformations. Density functional theory calculations revealed that weak interactions, such as hydrogen bonding between the C-H bond of the SCH3 group and the oxygen atom of the boryl ligand, control the ortho-selectivity.
- Kuninobu, Yoichiro,Naito, Morio,Torigoe, Takeru,Yamanaka, Masahiro,Zeng, Jialin
-
supporting information
(2020/05/08)
-
- METHOD FOR PRODUCING ONIUM COMPOUND, AND METHOD FOR PRODUCING CURABLE RESIN COMPOSITION
-
PROBLEM TO BE SOLVED: To provide a method for producing an onium compound which can produce a specific onium compound with a simple method and a high yield. SOLUTION: There is provided a method for producing an onium compound which is any of the following methods (A), (B) and (C). The method (A) includes a steps of mixing and reacting a compound represented by general formula (1), a compound represented by general formula (2), and a compound represented by general formula (3) in at least any one solvent of water, alcohol and acetonitrile to obtain a sulfonium compound represented by general formula (4). The method (B) includes a step of mixing and reacting a compound represented by general formula (11), the compound represented by general formula (2), and the compound represented by general formula (3) in water to obtain an ammonium compound represented by general formula (14). The method (C) includes a step of mixing and reacting a compound represented by general formula (21), the compound represented by general formula (2), and the compound represented by general formula (3) in water to obtain a phosphonium compound represented by general formula (24). SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
- -
-
Paragraph 0110; 0111; 0172
(2017/06/08)
-
- Rhodium-Catalyzed ipso-Borylation of Alkylthioarenes via C-S Bond Cleavage
-
Rhodium-catalyzed transformation of alkyl aryl sulfides into arylboronic acid pinacol esters via C-S bond cleavage is reported. In combination with transition-metal-catalyzed sulfanyl group-guided regioselective C-H borylation reactions of alkylthioarenes, this method allows the synthesis of a diverse range of multisubstituted arenes.
- Uetake, Yuta,Niwa, Takashi,Hosoya, Takamitsu
-
supporting information
p. 2758 - 2761
(2016/06/15)
-
- Changing the reactivity of polymeric activated esters by temperature: On-off switching of the reactivity of poly(4-acryloxyphenyldimethylsulfonium triflate)
-
RAFT polymerization of 4-acryloxyphenyldimethylsulfonium triflate (SR-AEM) using pentafluorophenyl-(4-phenylthiocarbonylthio-4-cyanovalerate) as the chain transfer agent and AIBN as a radical source in acetonitrile at 90 °C yielded poly(4-acryloxyphenyldi
- Kakuchi, Ryohei,Theato, Patrick
-
body text
p. 1331 - 1338
(2012/06/30)
-
- Exploring the biocatalytic scope of a bacterial flavin-containing monooxygenase
-
A bacterial flavin-containing monooxygenase (FMO), fused to phosphite dehydrogenase, has been used to explore its biocatalytic potential. The bifunctional biocatalyst could be expressed in high amounts in Escherichia coli and was able to oxidize indole and indole derivatives into a variety of indigo compounds. The monooxygenase also performs the sulfoxidation of a wide range of prochiral sulfides, showing moderate to good enantioselectivities in forming chiral sulfoxides. The Royal Society of Chemistry 2011.
- Rioz-Martinez, Ana,Kopacz, Malgorzata,De Gonzalo, Gonzalo,Torres Pazmino, Daniel E.,Gotor, Vicente,Fraaije, Marco W.
-
supporting information; experimental part
p. 1337 - 1341
(2011/04/23)
-
- Selected sulfonyl compounds as anticancer/antimalarial agents
-
The synthesis and biological testing of a series of sulfonyl phenols and sulfonyl aryl methyl ethers has revealed that p-methoxyphenyl p-toluenesulfonate is a very selective and effective antimalarial agent which shows pronounced activity against human skin cancer cells. Application of a counter-attack strategy permits the direct preparation of the requisite tosylate ether from the bis(tosylate) of dihydroquinone.
- Langler, Richard F.,Paddock, Robert L.,Thompson, David B.,Crandall, Ian,Ciach, Michelle,Kain, Kevin C.
-
p. 1127 - 1133
(2007/10/03)
-