beta-DIHYDROFURAN DERIVING COMPOUND, METHOD FOR PRODUCING beta-DIHYDROFURAN DERIVING COMPOUND OR beta-TETRAHYDROFURAN DERIVING COMPOUND, beta-GLYCOSIDE COMPOUND, METHOD FOR PRODUCING beta GLYCOSIDE COMPOUND, AND METHOD FOR PRODUCING 4'-ETHYNYL D4T AND ANALOGUE COMPOUNDS THEREOF
申请人:Iriyama Yusuke
公开号:US20120322995A1
公开(公告)日:2012-12-20
The invention provides a process for producing a β-dihydrofuran derivative represented by formula (1) or a β-tetrahydrofuran derivative represented by formula (4), characterized in that the process includes causing a dialkyl dicarbonate, a diaralkyl dicarbonate, or a halide to act on a diol compound represented by formula (2) or (3). The invention also provides a process for producing 4′-ethynyl-2′,3′-didehydro-3′-deoxythymidine or an analog thereof, the process including glycosylation and deprotection.
B-DIHYDROFURAN DERIVING COMPOUND, METHOD FOR PRODUCING B-DIHYDROFURAN DERIVING COMPOUND OR B-TETRAHYDROFURAN DERIVING COMPOUND, B -GLYCOSIDE COMPOUND, METHOD FOR PRODUCING B-GLYCOSIDE COMPOUND, AND METHOD FOR PRODUCING 4'-ETHYNYL D4T AND ANALOGUE COMPOUNDS THEREOF
申请人:Nissan Chemical Industries, Ltd.
公开号:EP2537839A1
公开(公告)日:2012-12-26
The invention provides a process for producing a β-dihydrofuran derivative represented by formula (1) or a β-tetrahydrofuran derivative represented by formula (4), characterized in that the process includes causing a dialkyl dicarbonate, a diaralkyl dicarbonate, or a halide to act on a diol compound represented by formula (2) or (3). The invention also provides a process for producing 4'-ethynyl-2',3'-didehydro-3'-deoxythymidine or an analog thereof, the process including glycosylation and deprotection.
RESIN COMPOSITION FOR FOAM, FOAM, AND PRODUCTION METHOD OF FOAM
申请人:KANEKA CORPORATION
公开号:EP3816216A1
公开(公告)日:2021-05-05
A resin composition for a foam which can expand at low temperatures within a short period of time even when the resin composition contains no water or the content of water is low, and a foam formed by expanding and curing the resin composition for a foam, as well as a method for producing a foam using the resin composition for a foam are provided. The resin composition for a foam contains a base resin having a reactive silicon group (A), a chemical foaming agent (B), and a silanol condensation catalyst, in which a dicarbonate diester is used as the chemical foaming agent (B). The resin composition for a foam preferably contains an acrylic resin and/or a polyoxyalkylene-based polymer as the base resin (A).
Rylene dyes of the general formula I
1
where
R is hydrogen; unsubstituted or substituted C
1
-C
30
-alkyl, aryl or hetaryl;
R′ is unsubstituted or substituted C
2
-C
30
-alkyl or C
5
-C
8
-cycloalkyl, or substituted methyl;
n is 0 or 1,
their preparation and use for coloring high-molecular-weight organic and inorganic materials, and
aminorylene-3,4-dicarboximide of the formula IV as their intermediates.