tert-Butyl carbazate

tert-Butyl carbazate
  • CAS No.:870-46-2

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  1. This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
  2. This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
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tert-Butyl carbazate Basic information
Product Name:tert-Butyl carbazate
Synonyms:TERT-BUTOXYCARBONYL HYDRAZIDE;TERT-BUTOXYCARBONYLHYDRAZINE;TERT-BOC-HYDRAZIDE;TERT-BUTYLOXYCARBAZATE;tert-butyloxycarbonyl-hydrazide;T-BOC-HYDRAZIDE;T-BUTOXYCARBONYL HYDRAZIDE;T-BUTYLCARBAZATE
CAS:870-46-2
MF:C5H12N2O2
MW:132.16
EINECS:212-795-3
Product Categories:bc0001
Mol File:870-46-2.mol
tert-Butyl carbazate Chemical Properties
Melting point 39-42 °C (lit.)
Boiling point 63-65 °C/0.1 mmHg (lit.)
density 1.02
refractive index 1.4496 (estimate)
Fp 197 °F
storage temp. Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
solubility Soluble in ethanol and methanol.
pka10.74±0.20(Predicted)
form Crystalline Lumps
color White to slightly yellow
Sensitive Moisture Sensitive
BRN 1756967
InChIKeyDKACXUFSLUYRFU-UHFFFAOYSA-N
CAS DataBase Reference870-46-2(CAS DataBase Reference)
EPA Substance Registry SystemHydrazinecarboxylic acid, 1,1-dimethylethyl ester (870-46-2)
Safety Information
Hazard Codes T-F,T,F
Risk Statements 48-36/37/38-24/25-11
Safety Statements 45-36/37/39-16-24/25
RIDADR 1325
WGK Germany 3
F 21
TSCA Yes
HazardClass 4.1
PackingGroup III
HS Code 29280090
MSDS Information
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tert-Butyl carbazate Usage And Synthesis
Chemical PropertiesWhite to pale yellow lumps
UsesStarting material for preparing BOC-azide, a reagent to introduce the BOC amino protection.
Usestert-Butyl carbazate is used in a palladium-catalyzed cross-coupling with vinyl halides to prepare N-Boc-N-alkenylhydrazines. It is utilized in solid phase peptide synthesis and in the optical purity determination of alfa-amino aldehyde. It reacts with aldehydes to get hydrazones, which finds application as an intermediate in the synthesis of HIV-1 protease inhibitors. In addition to this, it is used as a starting material for the preparation of BOC-azide, sulfonic and carboxylic hydrazides.
Synthesis Reference(s)Journal of the American Chemical Society, 82, p. 2725, 1960 DOI: 10.1021/ja01496a018Chemical and Pharmaceutical Bulletin, 18, p. 217, 1970 DOI: 10.1248/cpb.18.217
Purification MethodsDistil it in a Claisen flask with a water or oil bath at ca 80o. After a couple of drops have distilled, the carbazate is collected as an oil which solidifies to a snow white solid. It can be crystallised with 90% recovery from a 1:1 mixture of pet ether (b 30-60o) and pet ether (b 60-70o). [Carpino et al. Org Synth Coll Vol V 166 1973, Caprino et al. Org Synth 44 20 1964, Beilstein 3 IV 175.]

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