Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 2762-32-5 | MDL No. : | MFCD00132878 |
Formula : | C5H10N2O2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | JSSXHAMIXJGYCS-UHFFFAOYSA-N |
M.W : | 130.15 | Pubchem ID : | 2723758 |
Synonyms : |
|
Signal Word: | Warning | Class: | |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H302 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | 54a. 4-((Benzyloxy)carbonyl)-1 -(tert-butoxycarbonyl)piperazine-2- carboxylic acidThe tile compound was prepared according to the procedure of [Kempf, D. J.; Norbeck, D. W.; Sham, H. L U.S. Patent 5,455,351 , Oct 3, 1995]. Piperazine-2-carboxylic acid (10.0 g, 77.0 mmol) was dissolved in a 1 :1 solution of 1 ,4-dioxane:water (100 mL) at room temperature with vigorous stirring. The clear solution was adjusted to pH 11 by the addition of an aqueous solution of sodium hydroxide (80 mL of a 1Lambda/ solution). The pH was monitored in situ with a pH meter throughout the reaction. The reaction flask was fitted with an addition funnel that contained a solution of Lambda/-alpha- (benzyloxycarbonyloxy) succinamide (13.6 g, 55 mmol) in 1 ,4-dioxane (50 mL). The Lambda/-alpha-(benzyloxycarbonyloxy) succinamide solution was added over 45 minutes at room temperature and the pH was kept above 10 by the periodic addition of 1 Lambda/ sodium hydroxide. The pH of the solution was adjusted to 9.5 and 2-(teAf-butoxycarbonyloxyimino)-2-phenylacetonitrile (13.4 g, 55 mmol) was added as a solution in 1 ,4-dioxane (50 mL) over 10 minutes. The pH was maintained at 9.5 and the solution was stirred at room temperature for 17 hours. The solution was then acidified to pH 2 and the aqueous solution was washed with diethyl ether (3 x 150 mL). The aqueous solution was cooled to O0C and acidified by adding of concentrated hydrochloric acid. The acidic solution was extracted with ethyl acetate (5 x 150 mL). The combined organic phases were dried over sodium sulfate, filtered and concentrated in vacuo. The residue was triturated with a 1 :1 solution of dichloromethane: hexanes (150 mL) and the solvent was removed in vacuo to provide the product as a viscous yellow oil (15.7 g, 43 mmol, 80%). Rf = 0.60 (66:34 dichloromethane: ethyl acetate + 0.1% (v/v acetic acid); 1H-NMR (400 MHz, DMSO) delta 13.0 (br s, 1 H), 7.37-7.36 (m, 5H), 5.05 (s, 2H), 4.54-4.33 (m, 2H), 3.90-3.66 (m, 2H), 3.07-2.81 (m, 4H), 1.38 (s, 9H); Mass spectrum (ESI +ve) m/z 365.1 (MH+). |
[ 158663-69-5 ]
(S)-Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 126330-90-3 ]
(R)-Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 3022-15-9 ]
Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 1621961-57-6 ]
(S)-5-Oxopiperazine-2-carboxylic acid hydrochloride
Similarity: 0.85
[ 99571-58-1 ]
6-Methylpiperidine-2-carboxylic acid
Similarity: 0.69
[ 158663-69-5 ]
(S)-Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 126330-90-3 ]
(R)-Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 1621961-57-6 ]
(S)-5-Oxopiperazine-2-carboxylic acid hydrochloride
Similarity: 0.85
[ 122323-88-0 ]
Methyl piperazine-2-carboxylate dihydrochloride
Similarity: 0.83
[ 405513-08-8 ]
Methyl 1-methylpiperazine-2-carboxylate
Similarity: 0.81
[ 158663-69-5 ]
(S)-Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 126330-90-3 ]
(R)-Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 3022-15-9 ]
Piperazine-2-carboxylic acid dihydrochloride
Similarity: 0.97
[ 1621961-57-6 ]
(S)-5-Oxopiperazine-2-carboxylic acid hydrochloride
Similarity: 0.85
[ 122323-88-0 ]
Methyl piperazine-2-carboxylate dihydrochloride
Similarity: 0.83