52159-66-7Relevant articles and documents
Synthesis of 2-Hydroxy-1-naphthoic Acid Derivatives by Oxidative Cyclization of Esters of 5-Aryl-3-oxopentanoic Acid by Mn(III) and Ce(IV) Salts
Citterio, Attilio,Pesce, Luca,Sebastiano, Roberto,Santi, Roberto
, p. 142 - 144 (1990)
A new synthesis of substituted 2-hydroxy-1-naphthoic acid esters and amides 4 by oxidation of 5-aryl-3-oxopentanoic acid esters or amides 1 with manganese(III) acetate or cerium(IV) ammonium nitrate has been developed, based on the intramolecular homolytic substitution by α-dicarbonylalkyl radicals generated from high-valent metal β-dicarbonyl complexes.
Ruthenium(II)-catalyzed synthesis of hydroxylated arenes with ester as an effective directing group
Yang, Yiqing,Lin, Yun,Rao, Yu
supporting information; experimental part, p. 2874 - 2877 (2012/07/28)
An unprecedented Ru(II) catalyzed ortho-hydroxylation has been developed for the facile synthesis of a variety of multifunctionalized arenes from easily accessible ethyl benzoates with ester as an efficient directing group. Both the TFA/TFAA cosolvent system and oxidants serve as the critical success factors in this transformation. The reaction demonstrates excellent reactivity, good functional group tolerance, and high yields.
A new method for the synthesis of 2-cyclopenten-1-one-5-carboxylic ester derivatives via Rh2(OAc)4-mediated intramolecular C-H insertion reaction of 4Z-β-vinyl-α-diazo β-ketoesters
Deng, Guisheng,Xu, Baihua,Wang, Jianbo
, p. 10811 - 10817 (2007/10/03)
2-Cyclopenten-1-one-5-carboxylic ester derivatives 14 are synthesized in a four-step-reaction sequence starting from alkynyl aldehydes 9 via 4Z-β-vinyl-α-diazo β-ketoesters intermediate 8. The synthetic method for 8 is described. When the δ substituent is