2,5-Thiophenedicarboxaldehyde
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2,5-Thiophenedicarboxaldehyde
structure -
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CAS No:
932-95-6
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Formula:
C6H4O2S
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Chemical Name:
2,5-Thiophenedicarboxaldehyde
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Synonyms:
2,5-Thiophenedicarboxaldehyde;2,5-Diformylthiophene;2,5-Thiophenedicarbaldehyde;2,5-Thiophenedial;Thiophene-2,5-dialdehyde;2,5-Thienodicarboxaldehyde
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CAS No:
Safety Information
NONH for all modes of transport
3
36/37/38
26-36
Xi
P261-P305 + P351 + P338
H315-H319-H335
|Warning|H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 39 companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
2,5-Thiophenedicarboxaldehyde Use and Manufacturing
General procedure: To a solution of 2, 5-dibromothiophene 3a (0.5 g, 2.07 mmol) in THF (20 ml) an n-butyllithium solution (2.5 M in hexanes, 0.91 ml, 2.28 mmol, 1.1 equiv.) was carefully added at -78 °C under argon and theeaction mixture was slowly allowed to warm to 0 °C within 30 min. Anhydrousdimethylformamide (182 mg, 2.48 mmol, 1.2 equiv.) was then added and thereaction was stirred at room temperature for 2 h. A t-butyllithium solution (1.7 M in pentane, 1.58 ml, 2.69 mmol, 1.3equiv.) was added at -78 °Cand the reaction mixture was stirred for 5 min. Anhydrous dimethylformamide (1 ml, excess) was then added and the reaction was stirred at room temperatureovernight. The solution was poured intoaq HCl (1N, 10 ml) and stirred for 20 min. After neutralisation by aq NaHCO
Computed Properties
Molecular Weight:140.16
XLogP3:1.2
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:2
Exact Mass:139.99320054
Monoisotopic Mass:139.99320054
Topological Polar Surface Area:62.4
Heavy Atom Count:9
Complexity:110
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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