Chloroiodomethane
{{chembox
| Watchedfields = changed
| verifiedrevid = 415505072
| ImageFile = Chloroiodomethane.svg
| ImageFile_Ref = {{chemboximage|correct|??}}
| ImageSize = 100
| ImageName = Stereo, skeletal formula of chloroiodomethane with all explicit hydrogens added
| ImageFile1 = Chloroiodomethane-3D-vdW.png
| ImageFile1_Ref = {{chemboximage|correct|??}}
| ImageSize1 = 100
| ImageName1 = Spacefill model of chloroiodomethane
| PIN = Chloro(iodo)methane
| OtherNames = {{unbulleted list|Chloroiodomethane|Chloroiodomethane|Chloromethyl iodide
}}
|Section1={{Chembox Identifiers
| CASNo = 593-71-5
| CASNo_Ref = {{cascite|correct|??}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = X7AF9WG7CX
| PubChem = 11644
| ChemSpiderID = 11154
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| EINECS = 209-804-8
| Beilstein = 1730802
| SMILES = ClCI
| StdInChI = 1S/CH2ClI/c2-1-3/h1H2
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = PJGJQVRXEUVAFT-UHFFFAOYSA-N
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
}}
|Section2={{Chembox Properties
| C=1 | H=2 | Cl=1 | I=1
| Appearance = Colorless liquid
| Density = 2.422 g mL−1
| BoilingPtC = 108 to 109
| HenryConstant = 8.9 μmol Pa−1 kg−1
| RefractIndex = 1.582
}}
|Section3={{Chembox Hazards
| GHSPictograms = {{gHS exclamation mark}}
| GHSSignalWord = WARNING
| HPhrases = {{h-phrases|315|319|335}}
| PPhrases = {{p-phrases|261|305+351+338}}
| NFPA-H = 1
| NFPA-F = 1
| NFPA-R = 0
}}
|Section4={{Chembox Related
| OtherFunction_label = alkanes
| OtherFunction = {{unbulleted list|Chloromethane|Bromochloromethane|Dibromochloromethane}}
| OtherCompounds = 2-Chloroethanol
}}
}}
Chloroiodomethane is the halomethane with the formula is {{chem|C|H|2|Cl|I}}. It is a colorless liquid of use in organic synthesis.{{cite journal|title=Chloroiodomethane
|last1=Miyano|first1=Sotaro|last2=Friestad|first2=Gregory K.|journal=E-EROS Encyclopedia of Reagents for Organic Synthesis|year=2008|doi=10.1002/047084289X.rc110.pub2|isbn=978-0471936237}} Together with other iodomethanes, chloroiodomethane is produced by some microorganisms.{{cite journal|title=Production of free and organic iodine by Roseovarius spp.|last1=Fuse|first1=Hiroyuki|last2=Inoue|first2=Hiroyuki|last3=Murakami|first3= Katsuji|last4=Takimura|first4=Osamu|last5=Yamaoka|first5=Yukiho|journal=FEMS Microbiology Letters|year=2003|volume=229|issue=2|pages=189–94|doi=10.1016/S0378-1097(03)00839-5|pmid=14680698|doi-access=free}}
Applications
Chloroiodomethane is used in cyclopropanation (Simmon-Smith reaction), where it often replaces diiodomethane because of higher yields and selectivity. It is also used in Mannich reaction, aminomethylation, epoxidation, ring opening and addition to terminal alkenes. It is a precursor to agent Ph3P=CHCl that can add a chloromethylene group (=CHCl). It reacts with organolithium compounds to give chloromethyl lithium (ClCH2Li).{{cite journal|title=Chloromethyllithium|author=Donald S. Matteson|journal=EEROS|doi=10.1002/047084289X.rc117|year=2001|isbn=0471936235}}
Crystallography
It crystallizes orthorhombic crystal system with space group Pnma with lattice constants: a = 6.383, b = 6.706, c = 8.867 (.10−1 nm).{{cite journal |author1=Torrie B. H. |author2=Binbrek O. S. |author3=von Dreele R. | date = 1993 | title = Crystal structure of chloroiodomethane | journal = Mol. Phys. | volume = 79 |issue=4 | page = 869–874(6) | doi = 10.1080/00268979300101691 |bibcode=1993MolPh..79..869T |url=https://zenodo.org/record/1234397 }}
References
{{reflist}}
External links
- [https://web.archive.org/web/20070928061507/http://www.simafex.com/_pdf/chloroiodo.pdf Usage in organic synthesis]
{{halomethanes}}
{{organohalide-stub}}