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092ChemInform Abstract A series of eleven 1-chloroethyl carbonates such as (III), prepared by reaction of the chloroformate (I) with the alcohols (II), is converted into the corresponding fluoroformates (IV) by treatment with KF in the presence of a crown ether and under reduced pressure.
Supplementary Material Available: Spectral (IR, NMR, and high-resolution MS) and analytical data for carbonates and new fluoroformates (4 pages). Ordering information is given on any current masthead page.
1999organo-zirconium compounds organo-zirconium compounds S 4400
-185Simple Route to Bis(3-indenyl)methanes and the Synthesis, Characterization, and Polymerization Performance of Selected racemic-Dichloro[methylenebis(Rn-1-indenyl)]zirconium Complexes.-Bis(indenyl)methanes are synthesized by a new, inexpensive and convenient method as described.They provide a facile entry to methylene-bridged ansazirconocenes, e.g. (XII), which are used as catalysts in the polymerization of ethylene and
284ChemInform Abstract Polyhydroxy derivatives such as glucose (I), adonitol (IV), and thymidine (VI) are perethoxycarbonylated with ethyl fluoroformate (II) in DMSO (or DMF, NMP) to produce the corresponding carbonates (III), (V), and (VII).
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