TW328090B - Process for preparing 2,2-difluoroketene silyl acetals and α,α-difluoro-β-silyloxy-1,3-dioxolane-4-propanoic acid esters - Google Patents

Process for preparing 2,2-difluoroketene silyl acetals and α,α-difluoro-β-silyloxy-1,3-dioxolane-4-propanoic acid esters

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Publication number
TW328090B
TW328090B TW083111061A TW83111061A TW328090B TW 328090 B TW328090 B TW 328090B TW 083111061 A TW083111061 A TW 083111061A TW 83111061 A TW83111061 A TW 83111061A TW 328090 B TW328090 B TW 328090B
Authority
TW
Taiwan
Prior art keywords
preparing
silyloxy
dioxolane
difluoro
acid esters
Prior art date
Application number
TW083111061A
Other languages
Chinese (zh)
Inventor
Charles Britton Thomas
Original Assignee
Lilly Co Eli
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lilly Co Eli filed Critical Lilly Co Eli
Application granted granted Critical
Publication of TW328090B publication Critical patent/TW328090B/en

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Abstract

A process for preparing a 2,2-difluoroketene silyl acetal of the formula (I) (I) in which R1, R2, R3 and R4 each independently are C1-C6 alkyl and aryl; the process comprising contacting a chlorodifluroacetate of the formula (II) (II) (where R4 is defined in the above) with a halosilane of the formula (III) (III) in which X is chlorine or bromine, and R1, R2 and R3 are defined in the above; in the presence of a solvent of cyclic or acyclic tetraalkyl urea or a mixture thereof and a reducing agent.
TW083111061A 1994-09-16 1994-11-28 Process for preparing 2,2-difluoroketene silyl acetals and α,α-difluoro-β-silyloxy-1,3-dioxolane-4-propanoic acid esters TW328090B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30712294A 1994-09-16 1994-09-16

Publications (1)

Publication Number Publication Date
TW328090B true TW328090B (en) 1998-03-11

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ID=58262390

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Application Number Title Priority Date Filing Date
TW083111061A TW328090B (en) 1994-09-16 1994-11-28 Process for preparing 2,2-difluoroketene silyl acetals and α,α-difluoro-β-silyloxy-1,3-dioxolane-4-propanoic acid esters

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TW (1) TW328090B (en)

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