TW326043B - Method for preparing coumarin and derivatives thereof - Google Patents

Method for preparing coumarin and derivatives thereof

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Publication number
TW326043B
TW326043B TW084107247A TW84107247A TW326043B TW 326043 B TW326043 B TW 326043B TW 084107247 A TW084107247 A TW 084107247A TW 84107247 A TW84107247 A TW 84107247A TW 326043 B TW326043 B TW 326043B
Authority
TW
Taiwan
Prior art keywords
derivatives
compound
formula
preparing coumarin
iii
Prior art date
Application number
TW084107247A
Other languages
Chinese (zh)
Inventor
Alini Stefano
Cotarca Livius
Delogu Pietro
Original Assignee
Ind Chimiche Caffaro Spa
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 Ind Chimiche Caffaro Spa filed Critical Ind Chimiche Caffaro Spa
Application granted granted Critical
Publication of TW326043B publication Critical patent/TW326043B/en

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  • Pyrane Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

A process for producing a compound of the formula (I): (I) in which each R1, R2, R3 and R4 separately is hydrogen, by dehydrogenating a compound of the formula (II): (II) or a compound of the formula (III): (III) in the presence of catalysts based on metals of Group VIII of the periodic table of the elements and in the presence of at least one easily reducible organic compound.
TW084107247A 1994-09-20 1995-07-13 Method for preparing coumarin and derivatives thereof TW326043B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT9401908 1994-09-20

Publications (1)

Publication Number Publication Date
TW326043B true TW326043B (en) 1998-02-01

Family

ID=58262214

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084107247A TW326043B (en) 1994-09-20 1995-07-13 Method for preparing coumarin and derivatives thereof

Country Status (1)

Country Link
TW (1) TW326043B (en)

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