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2-(2-Bromoethyl)-1,3-dioxolane is used as a pharmaceutical intermediate, dioxolanes, acetals, ketals, building blocks, chemical synthesis, organic building blocks and oxygen compounds. 1,1-(Ethylenedioxy)-3-bromopropane is used in the synthesis of EGFR inhibitors. Also used in the synthesis of orally active agents of cancer and cell proliferation with quinoline substructures. It is also used as flavouring agent.
George Buechi.; Hans Wuest. Synthesis of (+-)-nuciferal. J. Org. Chem.196934, (4), 1122-1123.
Ehud Keinan.; Zeev Roth. Regioselectivity in organo-transition-metal chemistry. A new indicator substrate for classification of nucleophiles. J. Org. Chem.198348, (10), 1769-1772.
Masked ß-formylethyl synthon, compare preceding entry. The derived Grignard, which, unlike the dioxane analogue, is unstable above room temperature, shows similar attenuated reactivity in comparison with simple alkyl Grignard reagents, reacting with acid chlorides to give -ketoaldehydes without carbinol formation, and with enones to give, at low temperatures, predominantly the 1,4-addition product without the need for Cu catalysis:Tetrahedron Lett., 28, 3217 (1987).
The Grignard undergoes coupling reactions (CuBr2 + LiCl catalysis) with allylic halides: Tetrahedron Lett., 4549 (1979); J. Org. Chem., 46, 1504 (1981), allylic acetates: J. Am. Chem. Soc., 104, 2269 (1982), and primary alkyl bromides: J. Org. Chem., 48, 1767 (1983).
For a review of 3-carbon homologating reagents, including many examples of Grignard and organocuprate reactions of these molecules, see: Chem. Rev., 84, 409 (1984).
Dichiarazioni di rischio (UE): H227-H301-H315-H319-H335
Combustible liquid. Toxic if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Dichiarazioni precauzionali: P260-P201-P280a-P304+P340-P405-P501a
Do not breathe dust/fume/gas/mist/vapours/spray. Obtain special instructions before use. Wear protective gloves and eye/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.