Synthesis of 1,2-diiodoethene

Preparation of 1,2-diiodoethene

Alternative Names: trans 1,2-diiodoethene; (E)-1,2-Diiodoethene; (E)-1,2-Diiodoethylene; 1,2-DIIODOETHYLENE; (E)-CHI=CHI; (E)-1,2-Diiodoethene;

Preparation of 1,2-diiodoethene

Preparation of 1,2-diiodoethene

1,2-Diodoethylene can be obtained by leading acetylene (purified from gaseous phosphorus, arsenic and sulfur compounds by the method described J. Am. Chem. Soc. 61 (1939) 1868) into a 0,2N-solution of iodine in aqueous potassium iodide. The mixture is kept under a slight over-pressure of acetylene for 2 days, at the end of which 96% of the iodine has reacted and 91 % of crystalline trans-diiodoethylene. The crude crystals of 1,2-diiodoethene were filtered off, washed with potassium iodide solution, sodium hydroxyde solution and water, and dried between filter-papers. The mass was then recrystallized from alcohol, yielding pure 1,2-diiodoethene, m.p. 73.4°C; b.p. 196—197°C.

Acta Chem. Scand., 2, 292 (1948).

IUPAC Name

(E)-1,2-diiodoethene

InChI

InChI=1S/C2H2I2/c3-1-2-4/h1-2H/b2-1+

InChI Key

CVOGMKGEVNGRSK-OWOJBTEDSA-N

Canonical SMILES

C(=CI)I

Isomeric SMILES

C(=C/I)\I

Depositor-Supplied Synonyms

(E)-1,2-Diiodoethene, (E)-1,2-Diiodoethylene, 1,2-DIIODOETHYLENE, AC1NTCCA, (E)-CHI=CHI, (E)-1,2-Diiodoethene #, SCHEMBL629580, CVOGMKGEVNGRSK-OWOJBTEDSA-N, 20244-70-6, OR063466, 3B1-002817, 590-27-2

Removed Synonyms

1,2-DIIODOETHENE (CIS), CID5378102

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