Facile esterification of sulfonic acids and carboxylic acids with triethylorthoacetate
摘要:
Triethylorthoacetate was found to be surprisingly more effective than triethylorthoformate in the esterification of sulfonic acids and carboxylic acids. Using this reagent, esters of sulfonic and carboxylic acids are prepared in high yields.
Edminson; Hilditch, Journal of the Chemical Society, 1910, vol. 97, p. 226
作者:Edminson、Hilditch
DOI:——
日期:——
Singh; Sarma, Journal of the Indian Chemical Society, 1958, vol. 35, p. 49,51
作者:Singh、Sarma
DOI:——
日期:——
232. The influence of solvents and of other factors on the rotation of optically active compounds. Part XXX. The rotation–dispersion of various derivatives of camphor
作者:Thomas Stewart Patterson、James Dalrymple Loudon
DOI:10.1039/jr9320001725
日期:——
A Scalable, Nonenzymatic Synthesis of Highly Stereopure Difunctional C<sub>4</sub> Secondary Methyl Linchpin Synthons
作者:Shekar Mekala、Roger C. Hahn
DOI:10.1021/jo5025392
日期:2015.2.6
widespread use of heterodifunctional C4 secondary methyl building blocks in asymmetric synthesis, we have developed a mole-scale, two-step synthesis of a 1:1 mixture of the diastereomers of 3-bromo-2-methyl-1-propyl camphorsulfonate (casylate). One isomer (2S) has been crystallized to >99:1 dr in ∼25% yield. Equilibration of the mother liquor (enriched in 2R) to a 1:1 mixture and recrystallization significantly
Facile esterification of sulfonic acids and carboxylic acids with triethylorthoacetate
作者:John I. Trujillo、Aravamudan S. Gopalan
DOI:10.1016/s0040-4039(00)60124-7
日期:1993.11
Triethylorthoacetate was found to be surprisingly more effective than triethylorthoformate in the esterification of sulfonic acids and carboxylic acids. Using this reagent, esters of sulfonic and carboxylic acids are prepared in high yields.