Enantioselective Intermolecular Heck and Reductive Heck Reactions of Aryl Triflates, Mesylates, and Tosylates Catalyzed by Nickel
作者:Xiaolei Huang、Shenghan Teng、Yonggui Robin Chi、Wenqiang Xu、Maoping Pu、Yun‐Dong Wu、Jianrong Steve Zhou
DOI:10.1002/anie.202011036
日期:2021.2.8
Nickel‐catalyzed intermolecular Heckreaction of cycloalkenes proceeds well with aryl triflates, mesylates and tosylates in excellent enantiomeric ratios. The asymmetric reductive Heckreaction also works with a 2‐cyclopentenone ketal, which is equivalent to conjugate arylation of the enone itself.
Methanesulfonic acid/phosphorus oxychloride (MAPO) as a new efficient reagent in the Fries rearrangement
作者:Babak Kaboudin
DOI:10.1016/s0040-4020(99)00759-0
日期:1999.10
Methanesulfonicacid/phosphorus oxychloride (MAPO) was found to be a new effecient reagent in the Fries rearrangement of phenolic esters. Fries rearrangement of phenolic esters in the presence of MAPO, gave acylaryl methane sulfonates as major products.
N-Heterocyclic Carbene–Palladium(II)–1-Methylimidazole Complex-Catalyzed Suzuki–Miyaura Coupling of Aryl Sulfonates with Arylboronic Acids
作者:Zhan-Yong Wang、Gao-Qi Chen、Li-Xiong Shao
DOI:10.1021/jo301270t
日期:2012.8.3
the Suzuki–Miyauracoupling of arylsulfonates including tosylates and phenylsulfonates with arylboronicacids, giving the desired coupling products in good to high yields. Acceptable yields can also be achieved even by using the less reactive mesylates as the substrates. It is worthy of noting here that this is the first example of NHC–Pd(II) complex-catalyzed Suzuki–Miyauracoupling of aryl sulfonates
Palladium-Catalyzed Direct α-Arylation of Arylacetonitriles with Aryl Tosylates and Mesylates
作者:On Ying Yuen、Xiangmeng Chen、Junyu Wu、Chau Ming So
DOI:10.1002/ejoc.202000176
日期:2020.3.31
The first general palladium‐catalyzed α‐arylation of arylacetonitriles with aryl and heteroaryl sulfonates are reported. The catalyst system comprising of Pd(OAc)2 and XPhos is highly effective towards this reaction. A wide range of aryl/heteroaryl tosylates and mesylates are coupled with arylacetonitriles smoothly and catalyst loadings as low as 0.1 mol‐% Pd can be achieved.
PHENYL SULFONATE COMPOUND, NONAQUEOUS ELECTROLYTE SOLUTION USING THE SAME, AND LITHIUM BATTERY
申请人:Abe Koji
公开号:US20100291437A1
公开(公告)日:2010-11-18
Provided are (1) a novel phenyl sulfonate compound, (2) a nonaqueous electrolytic solution comprising an electrolyte salt dissolved in a nonaqueous solvent and containing a phenyl sulfonate compound of the following general formula (II) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and (3) a lithium battery containing the nonaqueous electrolytic solution and excellent in low-temperature cycle property.
(wherein X
1
to X
5
each independently represents a fluorine atom or a hydrogen atom, and from one to four of these are fluorine atoms; R
2
represents a linear or branched alkyl group having from 1 to 6 carbon atoms, a linear or branched alkyl group having from 1 to 6 carbon atoms in which at least one hydrogen atom is substituted with a halogen atom, or an aryl group having from 6 to 9 carbon atoms).