Substituents Effect on the Erlenmeyer−Plöchl Reaction: Understanding an Observed Process Reaction Time
摘要:
A systematic study on hippuric acid substituents was performed in order to better understand the influence of stereoelectronic factors on the Erlenmeyer reaction rate. In addition, two reaction systems were evaluated: Hunig's base solvent free conditions and catalytic sodium acetate in 2-methyl-THF. The effect on reaction rate of electron withdrawing and electron donating groups are reported. Specifically, the study led to the conclusion that stereoelectronic factors have significant influence in one of our key Erlenmeyer reaction by affecting its reaction rate.
An Efficient One-Pot Synthesis of Hippuric Acid Ethyl Ester Derivatives
作者:Samuel C. Conway、Robert B. Perni
DOI:10.1080/00397919808006857
日期:1998.5
Abstract A rapid, one-pot procedure is described for the preparation of the ethyl esters of a number of ring-substituted N-benzoyl glycine (hippuricacid) derivatives from readily-available starting materials.
The palladium‐catalyzed arylation/alkylation of ortho‐CH bonds in N‐benzoyl α‐amino esterderivatives is described. In such a system both the NH‐amido and the CO2R groups in the α‐amino ester moieties play a role in successful CH activation/CC bond formation using iodoaryl coupling partners. A wide variety of functional groups and electron‐rich/deficient iodoarenes are tolerated. The yields obtained
的钯-催化的芳基化/烷基化邻-C H键ñ -苯甲酰基α氨基酯衍生物进行说明。在这样的系统既NH-酰氨基和CO 2中的α氨基酯部分的R基团发挥成功℃的作用 ħ激活/ C 使用碘代芳基偶联配偶C键的形成。可以容忍各种各样的官能团和富电子/缺碘的碘代芳烃。获得的产率为20至95%。
Singh, Kumar K; Singh, Radhey M, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1994, vol. 33, p. 232 - 235
作者:Singh, Kumar K、Singh, Radhey M
DOI:——
日期:——
Ruegheimer; Fehlhaber, Justus Liebigs Annalen der Chemie, 1900, vol. 312, p. 74
作者:Ruegheimer、Fehlhaber
DOI:——
日期:——
Singh Kumar K., Singh Radhey M., Indian. J. Chem. B, 33 (1994) N 3, S 232-235