1,6-DIOXASPIRO[4.4]NONANE-2,7-DIONE

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Names

[ Name ]:
1,6-DIOXASPIRO[4.4]NONANE-2,7-DIONE

[Synonym ]:
4,4-Dihydroxypimelic acid dilactone
spiro<4,4>dibutyrolactone
EINECS 222-499-6
1,6-Dioxaspiro<4.4>nonan-2,7-dion
Spirodilactone
1,6-dioxaspiro[4,4]nonane-2,7-dione
MFCD00005531

Chemical & Physical Properties

[ Density]:
1.36g/cm3

[ Boiling Point ]:
452.5ºC at 760mmHg

[ Melting Point ]:
69-71ºC(lit.)

[ Molecular Formula ]:
C₇H₈O₄

[ Molecular Weight ]:
156.13600

[ Flash Point ]:
254.1ºC

[ Exact Mass ]:
156.04200

[ PSA ]:
52.60000

[ LogP ]:
0.35670

[ Index of Refraction ]:
1.507

MSDS

Click to get detail MSDS

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Safety Phrases ]:
S22-S24/25

[ RIDADR ]:
NONH for all modes of transport

[ HS Code ]:
2932999099

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

4-Oxoheptanedioic acid
dimethyl 4-nitroheptanedioate
Succinic anhydride
Succinic acid
Diethyl 4-oxoheptanedioate
Ethanoic anhydride
Acetyl chloride

DownStream

Monoethyl 4-Oxoheptanedioate
4-Oxoheptanedioic acid
Heptanedioic acid,4-oxo-, 1,7-dimethyl ester
2-(2-methyl-5-oxocyclopenten-1-yl)acetic acid

Customs

[ HS Code ]: 2932999099

[ Summary ]:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles

New degradable thermosets obtained by cationic copolymerization of DGEBA with an s (γ-butyrolactone). Giménez R, et al.

Polymer 46(24) , 10637-10647, (2005)

1,6-diaza-spiro[4.4]nonane-2,7-dione
1,6-dioxa-5-germaspiro[4.4]nonane-2,7-dione
1,6-bis(4-phenoxyphenyl)-1,6-diazaspiro[4.4]nonane-2,7-dione
2,7-diethyl-1,6-dioxaspiro[4.4]nonane
2,7-dimethyl-1,6-dioxaspiro[4.4]nonane
4,9-dimethyl-1,6-dioxa-5-germaspiro[4.4]nonane-2,7-dione
ethyl 3-(3-bromophenyl)-3-(2H-1,2,3,4-tetrazol-5-yl)propanoate
7-cyclohexyl-2,3,4,5-tetrahydro-1H-2-benzazepin-1-one
N-[(1E)-8-fluoro-5-methoxy-1,2,3,4-tetrahydronaphthalen-1-ylidene]hydroxylamine
methyl 4-methyl-2-[7-methyl-1-(4-methylphenyl)-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-2-yl]-1,3-thiazole-5-carboxylate
methyl 2-[1-(4-fluorophenyl)-7-methyl-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-2-yl]-4-methyl-1,3-thiazole-5-carboxylate
methyl 2-[1-(3-hydroxyphenyl)-7-methyl-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-2-yl]-4-methyl-1,3-thiazole-5-carboxylate
2-(2-methoxyethyl)-1-(3-methoxy-4-prop-2-enoxyphenyl)-7-methyl-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione
2-(4,5-dimethyl-1,3-thiazol-2-yl)-1-(4-hydroxy-3-methoxyphenyl)-7-methyl-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrole-3,9-dione
methyl 2-[1-(3-ethoxyphenyl)-7-methyl-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-2-yl]-4-methyl-1,3-thiazole-5-carboxylate
methyl 2-[1-(4-hydroxyphenyl)-6,7-dimethyl-3,9-dioxo-4a,5,6,7,8,8a-hexahydro-1H-chromeno[2,3-c]pyrrol-2-yl]-4-methyl-1,3-thiazole-5-carboxylate

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