Synthesis of Chloroacetic Acid (direct chlorination of acetic acid, not very good...) - Hazel Chem
Synthesis of chloroacetic acid (direct chlorination of acetic acid, quite good) - MADscienceMAX
Acide trifluoroacétique
https://fr.wikipedia.org/wiki/Acide_trifluoroac%C3%A9tiqueChloroacetic acid - Sciencemadness Wiki
http://www.sciencemadness.org/smwiki/index.php/Chloroacetic_acidSynthesis of chloroacetic acid - Rhodium site archive
https://www.erowid.org/archive/rhodium/chemistry/chloroacetic.htmlDirect chlorination of acetic acid produces a mix of mono,di,tri-choloracetic acid, which is a pain to separate