A new type of plant activator: thieno[2,3-<i>d</i>][1,2,3]thiadiazole-6-carboxylic acid derivatives
作者:Peter Stanetty、Manfred Kremslehner、Marion Jaksits
DOI:10.1002/(sici)1096-9063(1998110)54:3<316::aid-ps838>3.0.co;2-c
日期:1998.11
A short and efficient synthesis of a series of the title compounds is presented starting with methylenebutanedioic acid and thioacetic acid. Using the: Hurd-Mori reaction in the key step, the optimised reaction sequence allows the large-scale preparation of this new type of plant activator in a few steps with a high overall yield. Additional functionalisation of the 5-position via directed ortho-lithiation methodology is also described. (C) 1998 Society of Chemical Industry.