119460-71-8Relevant academic research and scientific papers
P-Spiro phosphonium salts catalyzed asymmetric fluorination of 3-substituted benzofuran-2(3H)-ones
Zhu, Chuan-Le,Fu, Xiao-Yun,Wei, Ai-Jia,Cahard, Dominique,Ma, Jun-An
, p. 60 - 66 (2013/06/26)
Abstract Asymmetric electrophilic fluorination of 3-substituted benzofuran-2(3H)-ones was realized under liquid-liquid phase-transfer catalysis with 2 mol% of chiral phosphonium salts to afford the fluorinated products with up to 96% yield and 56% ee.
Pd(II)-catalyzed enantioselective C-H activation/C-O bond formation: Synthesis of chiral benzofuranones
Cheng, Xiu-Fen,Li, Yan,Su, Yi-Ming,Yin, Feng,Wang, Jian-Yong,Sheng, Jie,Vora, Harit U.,Wang, Xi-Sheng,Yu, Jin-Quan
supporting information, p. 1236 - 1239 (2013/03/14)
Pd(II)-catalyzed enantioselective C-H activation of phenylacetic acids followed by an intramolecular C-O bond formation afforded chiral benzofuranones. This reaction provides the first example of enantioselecctive C-H functionalizations through Pd(II)/Pd(IV) redox catalysis.
Multiple approaches to enantiopure spirocyclic benzofuranones using organocatalytic cascade reactions
Cassani, Carlo,Tian, Xu,Escudero-Adan, Eduardo C.,Melchiorre, Paolo
supporting information; scheme or table, p. 233 - 235 (2011/03/22)
Three distinct aminocatalytic cascade reactions leading to enantiomerically pure spirocyclic benzofuranones have been devised, highlighting the ability of organocascade to generate high degrees of stereochemical and architectural complexity in a single ch
Stereoselective synthesis of 3-alkylideneoxindoles via palladium-catalyzed domino reactions
Yanada, Reiko,Obika, Shingo,Inokuma, Tsubasa,Yanada, Kazuo,Yamashita, Masayuki,Ohta, Shunsaku,Takemoto, Yoshiji
, p. 6972 - 6975 (2007/10/03)
We have developed efficient catalytic methods for the stereoselective and diversity synthesis of various (E)-, (Z)-, and disubstituted 3-alkylideneoxindoles and 3-alkylidene-benzofuran-2-ones via palladium-catalyzed Heck/Suzuki-Miyaura, Heck/Heck, and Hec
A new and efficient synthesis of pyridazin-3(2H)-ones via 1,3-dipolar cycloaddition
Msaddek, Moncef,Rammah, Mohamed,Ciamala, Kabula,Vebrel, Joel,Laude, Bernard
, p. 1495 - 1498 (2007/10/03)
3-Arylidenebenzofuran-2(3H)-ones are obtained by condensation of aldehydes Ar1CHO with benzofuran-2(3H)-one. A mixture of stereoisomers (Z) and (E) was isolated. The reaction of diarylnitrilimines with the Z+E mixture or with each stereoisomer leads regio- and and stereoselectively to cycloadducts which give, after acidic treatment, the same 5,6-diaryl-4-(0-hydroxyphenyl)pyridazin-3(2H)-one 6, irrespective of the double bond geometry of the starting olefin.
ACID CATALYZED ISOMERIZATION OF Z-α-PHENYLCINNAMIC ACIDS AND THEIR CONVERSION TO ISOMERIC ISOAURONES
Gadre, S. Y.,Marathe, K. G.
, p. 1015 - 1028 (2007/10/02)
E(4') and Z(4)-α-phenylcinnamic acids were synthesized.These were been converted into isoaurones.The stereochemistry of these were determined by 1H NMR and Lanthanide induced shift (LIS) studies.
