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[ CAS No. 766-39-2 ]

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Chemical Structure| 766-39-2
Chemical Structure| 766-39-2
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Product Details of [ 766-39-2 ]

CAS No. :766-39-2 MDL No. :MFCD00005523
Formula : C6H6O3 Boiling Point : 223°C at 760 mmHg
Linear Structure Formula :- InChI Key :N/A
M.W :126.11 g/mol Pubchem ID :13010
Synonyms :

Safety of [ 766-39-2 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P305+P351+P338 UN#:N/A
Hazard Statements:H302-H319 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 766-39-2 ]

  • Upstream synthesis route of [ 766-39-2 ]
  • Downstream synthetic route of [ 766-39-2 ]

[ 766-39-2 ] Synthesis Path-Upstream   1~7

  • 1
  • [ 766-39-2 ]
  • [ 5754-17-6 ]
YieldReaction ConditionsOperation in experiment
99% With hydrazine hydro-chloride In waterReflux Hydrazine hydrochloride (58 g, 552 mmol) is dissolved in hot water (300 mL) and dimethyl maleic anhydride (58 g, 460 mmol) is added in portions and the suspension stirred at reflux for 16 h. The suspension is cooled down to room temperature and the precipitate is filtered, washed with water and dried at 40° C. under vacuum to yield 4,5-dimethyl-1,2-dihydro-pyridazine-3,6-dione (36) (64 g, 99percent).1H-NMR (400 MHz, DMSO-d6) δ=11 (br s, 2H), 2.01 (s, 6H).MS (m/z, MH+) meas. 141.1.
Reference: [1] Patent: US2010/41663, 2010, A1, . Location in patent: Page/Page column 41
[2] Journal of Organic Chemistry, 1955, vol. 20, p. 707,708
[3] Journal of the American Chemical Society, 1954, vol. 76, p. 4454,4457
[4] Patent: US2011/34451, 2011, A1, . Location in patent: Page/Page column 57
[5] Patent: US2011/34452, 2011, A1, . Location in patent: Page/Page column 36
  • 2
  • [ 766-39-2 ]
  • [ 63751-07-5 ]
  • [ 5754-17-6 ]
Reference: [1] Journal of Organic Chemistry, 1955, vol. 20, p. 707,708
  • 3
  • [ 766-39-2 ]
  • [ 34584-69-5 ]
Reference: [1] Patent: US2011/34451, 2011, A1,
[2] Patent: US2011/34452, 2011, A1,
  • 4
  • [ 766-39-2 ]
  • [ 4282-29-5 ]
Reference: [1] Tetrahedron Letters, 2016, vol. 57, # 24, p. 2608 - 2611
  • 5
  • [ 7397-06-0 ]
  • [ 766-39-2 ]
  • [ 32703-79-0 ]
  • [ 74186-27-9 ]
  • [ 95-47-6 ]
Reference: [1] J. Appl. Chem. USSR (Engl. Transl.), 1980, vol. 53, # 2, p. 353 - 355[2] Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 1980, vol. 53, # 2, p. 418 - 420
  • 6
  • [ 766-39-2 ]
  • [ 487-66-1 ]
Reference: [1] Patent: US2008/275057, 2008, A1,
  • 7
  • [ 766-39-2 ]
  • [ 245124-18-9 ]
Reference: [1] Patent: US2008/275057, 2008, A1,
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