Biilmann, Einar published the artcileBetaines. IV. The mechanism of the racemization of the salts of ethyl propiobetainate, Name: Ethyl 2-Iodopropionate, the publication is Bulletin de la Societe Chimique de France, Memoires (1936), 2295-2305, database is CAplus.
cf C. A. 29, 2916.5. d-and l-Et propiobetainate iodide, m. 130-1°, [α]D48 19.64°, are racemized at the same rate by d-EtMeCHCH2NEt2 (I), b765 150-1°, d420 0.7515, [α]D20 17.96°, and the racemic form of Et propiotrimethylbetainate is not rendered active by treatment with I or nicotine. This shows that there is no addition compound of the betainate and amine involved in the racemation. l-α-Phenylethyltrimethylammonium iodide, m. 157-7.5°, [α]D20 19.60°, which cannot enolize, is not racemized by EtONa. This indicates that racemization occurs through the enol form, and reagents such as NaOEt and Me3N which can react with enols, increase their concentration and so hasten racemization. This effect is complicated by the fact that the pos. N in the betaines also favors racemization. Thus, in alc. solution MeCH(NMe3)CO2EtI is racemized even by such weak bases as Et3P. MeCHNH2CO2Et is not racemized by NaOEt or Et3N, but MeCH(NMe2)CO2Et, b767 155.6-6.5°, d420 0.9207, [α]D20 5.58°, is slowly racemized by NaOEt.
Bulletin de la Societe Chimique de France, Memoires published new progress about 31253-08-4. 31253-08-4 belongs to iodides-buliding-blocks, auxiliary class Iodide,Ester, name is Ethyl 2-Iodopropionate, and the molecular formula is C5H9IO2, Name: Ethyl 2-Iodopropionate.
Referemce:
https://en.wikipedia.org/wiki/Iodide,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com