Detail of "58673-12-4"
- CAS Number:
- 58673-12-4
- Name:
Phosphonous acid,1H-1,2,4-triazol-1-yl-, diethyl ester (9CI)
- Molecular Structure:
- Formula:
- C6H12 N3 O2 P
- Molecular Weight:
- 239.209281
- Synonyms:
- DIETHYL PHOSPHOROTRIAZOLIDITE;diethyl 1H-1,2,4-triazol-1-ylphosphonite
- Density:
- g/cm3
- Boiling Point:
- 253.7°Cat760mmHg
- Flash Point:
- 107.2°C
Phosphonous acid,1H-1,2,4-triazol-1-yl-, diethyl ester (9CI)
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Reference
- Carbon-13 NMR sequence analysis, 10
- Carbon-13 NMR sequence analysis, 10. Synthesis and spectroscopic characterization of sequence polypeptides containing taurine, g-aminopropanesulfonic acid, and sulfanilic acid. Kricheldorf, Hans R.; Schultze, Joachim (Inst. Makromol. 58673-12-4 which is the cas registry number is also used here. Chem.Several reagents such as 58673-12-4 is used here., Univ. Freiburg, Freiburg/Br., Ger.). Makromol. Chem., 178(11), 3141-63 (English) 1977. CODEN: MACEAK. ISSN: 0025-116X. DOCUMENT TYPE: Journal CA Section: 34 (Synthesis of Amino Acids, Peptides, and Proteins) Tripeptides ZNH-X-SO2NH(CH2)nCONH(CH2)mCO2H (I; X = CH2CH2, p-C6H4; Z = PhCH2O2C; m = n = 1, 2) were prepd. from ZNHCH2CH2SO2Cl or 4-ZNHC6H4SO2Cl and H-Gly-OMe or H2N(CH2)2CO2Me. I (X = p-C6H4) were converted into 4-SCNC6H4SO2NH(CH2)nCONH(CH2)mCO2H, which were condensed to give [NH-p-C6H4-X1-X2]x (II; X1 = X2 = Gly, b-Ala). [NH-X-SO2NH(CH2)nCONH(CH2)mCO]x were prepd. from the deblocked tripeptides I using III (R = R1 = Et; RR1 = CH2CH2) as condensing agents. 13C NMR was more useful for the sequence anal. of these polypeptides than 1H NMR. The influence of monomer structure, sequence, and solvent on chem. shift was discussed. ..
- Carbon-13 NMR sequence analysis, 10
- Carbon-13 NMR sequence analysis, 10. Synthesis and spectroscopic characterization of sequence polypeptides containing taurine, g-aminopropanesulfonic acid, and sulfanilic acid. Kricheldorf, Hans R.; Schultze, Joachim (Inst. Makromol. 58673-12-4 which is the cas registry number is also used here. Chem.Several reagents such as 58673-12-4 is used here., Univ. Freiburg, Freiburg/Br., Ger.). Makromol. Chem., 178(11), 3141-63 (English) 1977. CODEN: MACEAK. ISSN: 0025-116X. DOCUMENT TYPE: Journal CA Section: 34 (Synthesis of Amino Acids, Peptides, and Proteins) Tripeptides ZNH-X-SO2NH(CH2)nCONH(CH2)mCO2H (I; X = CH2CH2, p-C6H4; Z = PhCH2O2C; m = n = 1, 2) were prepd. from ZNHCH2CH2SO2Cl or 4-ZNHC6H4SO2Cl and H-Gly-OMe or H2N(CH2)2CO2Me. I (X = p-C6H4) were converted into 4-SCNC6H4SO2NH(CH2)nCONH(CH2)mCO2H, which were condensed to give [NH-p-C6H4-X1-X2]x (II; X1 = X2 = Gly, b-Ala). [NH-X-SO2NH(CH2)nCONH(CH2)mCO]x were prepd. from the deblocked tripeptides I using III (R = R1 = Et; RR1 = CH2CH2) as condensing agents. 13C NMR was more useful for the sequence anal. of these polypeptides than 1H NMR. The influence of monomer structure, sequence, and solvent on chem. shift was discussed. ..