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54714-11-3 - 4,6-Diphenylthieno[3,4-d]-1,3-dioxol-2-one 5,5-dioxide, 97% - Steglich's Reagent - TDO activated carbonate - L13513 - Alfa Aesar

L13513 4,6-Diphenylthieno[3,4-d]-1,3-dioxol-2-one 5,5-dioxide, 97%

Codice CAS
54714-11-3
Sinonimi
Steglich's Reagent
TDO activated carbonate

Dimensioni Prezzo ($) Quantità Disponibilità
1g 32,92
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4,6-Diphenylthieno[3,4-d]-1,3-dioxol-2-one 5,5-dioxide, 97%

MDL
MFCD00040564
EINECS
259-301-2

Proprietà chimiche

Formula
C17H10O5S
Peso formula
326.33
Punto di fusione
224-230°
Sensibilità
Moisture Sensitive

Letteratura

Reagent for the formation of active esters for peptide coupling or esterification. In the presence of 1 equiv. of base, these enolize with formation of a deep red anion in which the enolate oxygen is well placed to facilitate aminolysis or alcoholysis: Angew. Chem. Int. Ed., 15, 444 (1976). Aminolysis occurs more rapidly in dichloromethane than in the more polar DMF. Progress of acylation can readily be followed by disappearance of the red color of the active ester, giving scope for the possibility of automatic monitoring of the reaction: J. Chem. Soc., Chem. Commun., 1870 (1987).

/n

Reacts with t-butanol and pyridine to give an activated reagent for the formation of Boc derivatives of amino acids which can then further react with the reagent to form active esters for peptide coupling: Angew. Chem. Int. Ed., 18, 307 (1979); Liebigs Ann. Chem., 437 (1988). For peptide reagents, see Appendix 6.

/n

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Dichiarazioni precauzionali: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
1396884
Codice tariffe armonizzato
2934.99
TSCA
No

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