In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Nitrite-mediated synthesis of chiral epichlorohydrin using halohydrin dehalogenase from Agrobacterium radiobacter AD1, published in 2012-06-30, which mentions a compound: 60827-45-4, mainly applied to halohydrin dehalogenase chiral epichlorohydrin synthesis nitrite mediated, Reference of (2S)-(+)-3-Chloropropane-1,2-diol.
In the current study, the haloalc. dehalogenase HheC gene from Agrobacterium radiobacter AD1 was synthesized and expressed in Escherichia coli. After purification using Ni-nitrilotriacetic acid affinity chromatog., HheC was used in the synthesis of chiral epichlorohydrin in the presence of NO2-. The optimal pH, temperature, and NO2- concentration for enantioselectivity are 5.0, 37°C, and 60 mM, resp. The maximum velocity and Michaelis constant values for (S)-epichlorohydrin are 714.3 μmol min-1 mg-1 and 17.2 mM, resp., whereas those for (R)-epichlorohydrin are 166.8 μmol min-1 mg-1 and 29.0 mM, resp. Under optimal conditions, (R)-epichlorohydrin with 99% enantiomeric excess was obtained after an 18 Min reaction; the yield reached 41%, which is the highest amount obtained for chiral epichlorohydrin synthesis using haloalc. dehalogenase. In addition, (R)-epichlorohydrin with 99% enantiomeric excess was successfully obtained from 1,3-dichloro-2-propanol by the ring opening of racemic epichlorohydrin in the presence of NO2- after the ring closure of 1,3-dichloro-2-propanol with HheC. To the best of our knowledge, the current study is the first report on the kinetic resolution of epichlorohydrin with NO2- and synthesis of chiral epichlorohydrin with 99% enantiomeric excess from 1,3-dichloro-2-propanol by combining ring closure of 1,3-dichloro-2-propanol and ring opening of racemic epichlorohydrin.
After consulting a lot of data, we found that this compound(60827-45-4)Reference of (2S)-(+)-3-Chloropropane-1,2-diol can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com