1,3-Isobenzofurandione,3a,7a-dihydro-

Modify Date: 2025-08-25 18:04:06

1,3-Isobenzofurandione,3a,7a-dihydro- Structure
1,3-Isobenzofurandione,3a,7a-dihydro- structure
 Common Name 1,3-Isobenzofurandione,3a,7a-dihydro-
CAS Number 4436-49-1 Molecular Weight 150.13100
Density 1.348g/cm3 Boiling Point 326ºC at 760mmHg
Molecular Formula C8H6O3 Melting Point N/A
MSDS N/A Flash Point 162.6ºC

 Names

Name 3a,7a-dihydro-2-benzofuran-1,3-dione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.348g/cm3
Boiling Point 326ºC at 760mmHg
Molecular Formula C8H6O3
Molecular Weight 150.13100
Flash Point 162.6ºC
Exact Mass 150.03200
PSA 43.37000
LogP 0.42820
Index of Refraction 1.56

 Synthetic Route

3,3-dimethyl-2-oxa-3-sila-bicyclo[2.2.2]oct-7-ene-5exo,6exo-dicarboxylic acid anhydride structure

3,3-dimethyl-2-...

CAS#:84521-19-7

~67%

Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

hexamethylcyclotrisiloxane structure

hexamethylcyclo...

CAS#:541-05-9

Literature: Hussmann, Gregory; Wulff, William D.; Barton, Thomas J. Journal of the American Chemical Society, 1983 , vol. 105, # 5 p. 1263 - 1269
(4S,7R)-8-methyl-8-(trimethylsilyl)-3a,4,7,7a-tetrahydro-4,7-(epoxysilano)isobenzofuran-1,3-dione structure

(4S,7R)-8-methy...

CAS#:84521-25-5

~51%

Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

3-methoxy-2,2,3,5,5-pentamethyl-4,6-dioxa-2,3,5-trisilaheptane structure

3-methoxy-2,2,3...

CAS#:84521-26-6

Literature: Hussmann, Gregory; Wulff, William D.; Barton, Thomas J. Journal of the American Chemical Society, 1983 , vol. 105, # 5 p. 1263 - 1269
Dimethoxy(dimethyl)silane structure

Dimethoxy(dimet...

CAS#:1112-39-6

(4S,7R)-8-methyl-8-(trimethylsilyl)-3a,4,7,7a-tetrahydro-4,7-(epoxysilano)isobenzofuran-1,3-dione structure

(4S,7R)-8-methy...

CAS#:84521-25-5

~53%

Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

Detail
Literature: Hussmann, Gregory; Wulff, William D.; Barton, Thomas J. Journal of the American Chemical Society, 1983 , vol. 105, # 5 p. 1263 - 1269
Dimethoxydiphenylsilane structure

Dimethoxydiphen...

CAS#:6843-66-9

3,3-dimethyl-2-oxa-3-sila-bicyclo[2.2.2]oct-7-ene-5exo,6exo-dicarboxylic acid anhydride structure

3,3-dimethyl-2-...

CAS#:84521-19-7

~%

Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

Detail
Literature: Hussmann, Gregory; Wulff, William D.; Barton, Thomas J. Journal of the American Chemical Society, 1983 , vol. 105, # 5 p. 1263 - 1269
3,3-dimethyl-2-oxa-3-sila-bicyclo[2.2.2]oct-7-ene-5exo,6exo-dicarboxylic acid anhydride structure

3,3-dimethyl-2-...

CAS#:84521-19-7

~%

Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

poly(dimethylsiloxane) structure

poly(dimethylsi...

CAS#:47956-45-6

Literature: Khabashesku, V. N.; Kerzina, Z. A.; Baskir, E. G.; Maltsev, A. K.; Nefedov, O. M. Journal of Organometallic Chemistry, 1988 , vol. 347, p. 277 - 294
cyclohexa-3,5-diene-1,2-dicarboxylic acid structure

cyclohexa-3,5-d...

CAS#:22919-28-4

~%

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

Literature: Khabashesku, V. N.; Kerzina, Z. A.; Baskir, E. G.; Maltsev, A. K.; Nefedov, O. M. Journal of Organometallic Chemistry, 1988 , vol. 347, p. 277 - 294
Phthalic acid structure

Phthalic acid

CAS#:88-99-3

~%

1,3-Isobenzofurandione,3a,7a-dihydro- Structure

1,3-Isobenzofur...

CAS#:4436-49-1

Literature: Khabashesku, V. N.; Kerzina, Z. A.; Baskir, E. G.; Maltsev, A. K.; Nefedov, O. M. Journal of Organometallic Chemistry, 1988 , vol. 347, p. 277 - 294

 Synonyms

Cyclohexa-3,5-dien-1,2-dicarbonsaeure-anhydrid
1,2-dihydrophthalic anhydride
Dihydro-phthalsaeureanhydrid
dihydro phthalic anhydride
cyclohexa-3,5-diene-1,2-dicarboxylic acid anhydride
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