ChemicalBook >?? ???? >?? ??>???? ?? ???>2,2,6-????-4H-1,3-????-4-?

2,2,6-????-4H-1,3-????-4-?

2,2,6-????-4H-1,3-????-4-? ??? ???

?? ??:: 5394-63-8

???:: 2,2,6-????-4H-1,3-????-4-?

???(??):: 2,2,6-????-4H-1,3-????-4-?

???:: 2,2,6-Trimethyl-4H-1,3-dioxin-4-one

???(??):: TKD;2,2,6-TRIMETHYL-1,3-DIOXIN-4-ONE;Diketton Acetone Adduct;DIKETENE ACETONE ADDUCT;2,2,6-TRIMETHYL-1,3-DIOXEN-4-ONE;2,2,6-TrimethyL;-4H-1,3-dioxin-4-one;DIKETE ACETONE ADDUCT;2,2,6-Trimethyl-4H-1,3-dioxin-;Trimethyl-(4H)-1,3-dioxin-4-one

CBNumber:: CB0412977

???:: C7H10O3

??? ??:: 142.15

MOL ??:: 5394-63-8.mol

MSDS ??:: SDS

MSDS

?? ?? 270

2,2,6-????-4H-1,3-????-4-? ??

???: 12-13 °C(lit.)

?? ?: ~275 °C(lit.)

??: 1.07 g/mL at 25 °C(lit.)

???: n20/D 1.460(lit.)

???: 67 °F

?? ??: 2-8°C

???: ?: ???

??? ??: ??

??: ??? ??

???: ????? ???

BRN: 2408

?? ??: ACGIH: TWA 250 ppm; STEL 500 ppm
OSHA: TWA 1000 ppm(2400 mg/m3)
NIOSH: IDLH 2500 ppm; TWA 250 ppm(590 mg/m3)

InChI: InChI=1S/C7H10O3/c1-5-4-6(8)10-7(2,3)9-5/h4H,1-3H3

InChIKey: XFRBXZCBOYNMJP-UHFFFAOYSA-N

SMILES: O1C(C)=CC(=O)OC1(C)C

CAS ??????: 5394-63-8(CAS DataBase Reference)

?? ? ?? ??
?? ? ???? ?? (GHS)

??? ??	F,Xi
?? ???? ??	11-36/37/38-36
?????	16-26-27-36/37/39-9-33
????(UN No.)	UN 1993 3/PG 2
WGK ??	3
?? ??	3
????	II
HS ??	29329995
???? ???	3 - Flammable liquids
Hazard Classifications	Eye Irrit. 2 Flam. Liq. 2
???? ??	KE-34501

????(GHS):

?? ?:

Danger

??·?? ??:

??	??·?? ??	?? ??	??	?? ?	?? ??	P- ??
H225	???? ?? ? ??	??? ??	?? 2	??		P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H319	?? ?? ??? ???	?? ? ?? ?? ??? ??	?? 2A	??		P264, P280, P305+P351+P338,P337+P313P

??????:

P210	?·???·??·????? ????? - ?? ???.
P305+P351+P338	?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.

NFPA 704

	3
2		0

2,2,6-????-4H-1,3-????-4-? MSDS

2,2,6-Trimethyl-4H-1,3-dioxin-4-one

2,2,6-????-4H-1,3-????-4-? C??? ??, ??, ??

??? ??

Dark brown liquid

??

Diketene-Acetone Adduct can be used in place of diketene in many reactions. As a transportable form of diketene, it is especially important in those countries, where the transportation of diketene is not allowed or at least not desired.

?? ??

2,2,6-Trimethyl-4H-1,3-dioxin-4-one generates unstable acetylketene together with acetone when heated above 120 ℃. Subsequent condensation with isocyanates, arylcyanates, or substituted cyanamides gives access to a wide range of 1,3-oxazine derivatives. Furthermore, diketene – acetone adduct can also be used for the preparation of a variety of compounds that are not accessible from diketene.

?? ??

Diketene – acetone adduct (2,2,6-Trimethyl-4H-1,3-dioxin-4-one) can be regarded as a stabilized form of diketene. It can be safely transported and may conveniently be used instead of diketene in many reactions. For example, it reacts with alcohols and amines to yield acetoacetates and acetoacetamides, respectively. Diketene – acetone adduct generates unstable acetylketene together with acetone when heated above 120 C. Subsequent condensation with isocyanates, arylcyanates, or substituted cyanamides gives access to a wide range of 1,3-oxazine derivatives. Furthermore, diketene – acetone adduct can also be used for the preparation of a variety of compounds that are not accessible from diketene.

2,2,6-????-4H-1,3-????-4-? ?? ?? ? ???

???

Butanoic acid, 3-oxo-, 1-methylethenyl ester 1-Butene-1,3-dione 1,3-Dioxan-4-one, 2,2,6-trimethyl- ?? ??? ??? ?? P-????? ? ????????????????

?? ??

2,6-???-4H-??-4-? ????????? 4H-Pyran-4-one, 2,3-dihydro-2,2,3,3-tetramethoxy-6-methyl- α-???????????? 4-(2,3-Dichlorophenyl)-2,6-diMethyl-1,4-dihydropyridine-3,5-dicarboxylic acid

2,2,6-????-4H-1,3-????-4-? ?? ??

???( 270)?? ??

???	??	???	??	?? ?	??
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2,2,6-????-4H-1,3-????-4-? ?? ??:

?????? N-??-2-????? ????? ???????? ????? 2,3,7,8-?????????-P-??? Mesotrione Norandrostenedione Norgestrel METHYL-2-PYRROLIDONE 2,2,5,6-TETRAMETHYL-4H-1,3-DIOXIN-4-ONE 2,2,6-Trimethyl-4H-1,3-dioxin-4-one 2,2-DIMETHYL-6-TRIFLUOROMETHYL-1,3-DIOXIN-4-ONE (6R)-(-)-4,10-DIMETHYL-7-ISOPROPYL-1,5-DIOXASPIRO[5.5]UNDEC-3-EN-2-ON 2,6-Bis(4-methoxyphenyl)-2-methyl-4H-1,3-dioxin-4-one SPIRO[ADAMANTANE-2,2'-(6'-(4'-CHLOROPHENYL)-4H-1',3'-DIOXIN-4'-ONE)] 2-(chloromethyl)-2-methyl-6-phenyl-4H-1,3-dioxin-4-one 2-(BROMOMETHYL)-6-(4-METHYLPHENYL)-2-PHENYL-4H-1,3-DIOXIN-4-ONE

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2,2,6-????-4H-1,3-????-4-?

2,2,6-????-4H-1,3-????-4-? ??

2,2,6-????-4H-1,3-????-4-? MSDS

2,2,6-????-4H-1,3-????-4-? C??? ??, ??, ??

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2,2,6-????-4H-1,3-????-4-? ?? ??

2,2,6-????-4H-1,3-????-4-? ?? ??: