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(R)-1-Boc-3-methylpiperazine

CAS No.
163765-44-4
Chemical Name:
(R)-1-Boc-3-methylpiperazine
Synonyms
tert-butyl (R)-3-methylpiperazine-1-carboxylate;(R)-tert-butyl 3-Methylpiperazine-1-carboxylate;(R)-4-BOC-2-METHYLPIPERAZINE;(R)-4-N-BOC-2-METHYLPIPERAZINE;CAS:163765-44-4;tert-Butyl (3R)-3-methylpiperazine-1-carboxylate;(R)-4-Boc-2-Methylpi;(R)-N-BOC-2-METHYLPIPERAZINE;(R)-1-BOC-3-METHYLPIPERAZINE;(R)-N4-BOC-2-METHYLPIPERAZINE
CBNumber:
CB4192376
Molecular Formula:
C10H20N2O2
Molecular Weight:
200.28
MDL Number:
MFCD02683205
MOL File:
163765-44-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 02:06:00

(R)-1-Boc-3-methylpiperazine Properties

Melting point 40-45 °C
Boiling point 268.7±15.0 °C(Predicted)
Density 0.997±0.06 g/cm3(Predicted)
Flash point 223 °F
storage temp. under inert gas (nitrogen or Argon) at 2–8 °C
pka 8.52±0.40(Predicted)
form Crystalline Powder
color White
optical activity [α]/D +16±2°, c = 1 in dioxane
InChI InChI=1S/C10H20N2O2/c1-8-7-12(6-5-11-8)9(13)14-10(2,3)4/h8,11H,5-7H2,1-4H3/t8-/m1/s1
InChIKey FMLPQHJYUZTHQS-MRVPVSSYSA-N
SMILES N1(C(OC(C)(C)C)=O)CCN[C@H](C)C1
CAS DataBase Reference 163765-44-4(CAS DataBase Reference)
UNSPSC Code 12352005
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  37/38-41-36/37/38
Safety Statements  26-39-37/39
WGK Germany  3
10-34
HS Code  29335990
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
1
2 0

(R)-1-Boc-3-methylpiperazine price More Price(82)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical M3462 (R)-1-Boc-3-methylpiperazine min. 98.0 % 163765-44-4 5G $41 2026-04-30 Buy
TCI Chemical M3462 (R)-1-Boc-3-methylpiperazine min. 98.0 % 163765-44-4 25G $125 2026-04-30 Buy
AstaTech 56832 (R)-4-N-BOC-2-METHYL-PIPERAZINE 98% 163765-44-4 5G $29 2026-04-30 Buy
AstaTech 56832 (R)-4-N-BOC-2-METHYL-PIPERAZINE 98% 163765-44-4 25G $67 2026-04-30 Buy
AstaTech 56832 (R)-4-N-BOC-2-METHYL-PIPERAZINE 98% 163765-44-4 100G $200 2026-04-30 Buy
Product number Packaging Price Buy
M3462 5G $41 Buy
M3462 25G $125 Buy
56832 5G $29 Buy
56832 25G $67 Buy
56832 100G $200 Buy

(R)-1-Boc-3-methylpiperazine Chemical Properties,Uses,Production

Chemical Properties

White solid

Uses

(R)-4-Boc-2-methylpiperazine is a reagent used in organic synthesis. Used in the synthesis of orally bioavailable inhibitors of 11-β-hydroxysteroid. (R)-4-Boc-2-methylpiperazine is a biochemical reagent that can be used as a biological material or organic compound for life science related research.

Synthesis

To a solution of (R)-methylpiperazine (400 mg) in dichloromethane (20 mL) at 0 ℃ was added di-tert-butyl dicarbonate (871 mg). The reaction was stirred at room temperature for 4 h and then quenched with water (20 mL), followed by extraction into dichloromethane (2 x 40 mL). The combined organics were washed with saturated aqueous brine solution (40 mL), dried (MgSO4), and concentrated to give (R)-1-Boc-3-methylpiperazine as a white solid (669 mg, 84%).

(R)-4-Boc-2-methylpiperazine

References

[1] Patent: WO2008/70740, 2008, A1. Location in patent: Page/Page column 191
[2] Patent: US2010/216812, 2010, A1. Location in patent: Page/Page column 45
[3] Patent: US2011/201622, 2011, A1. Location in patent: Page/Page column 14
[4] Bioorganic and Medicinal Chemistry Letters, 2008, vol. 18, # 11, p. 3282 - 3285
[5] Patent: US2005/70549, 2005, A1

24424-99-5
75336-86-6
163765-44-4
Synthesis of (R)-1-Boc-3-methylpiperazine from Di-tert-butyl dicarbonate and (R)-(-)-2-Methylpiperazine

(R)-1-Boc-3-methylpiperazine Preparation Products And Raw materials

Global( 286)Suppliers
Supplier Tel Email Country ProdList Advantage
Hubei Koma Biotechnology Co., Ltd. 15549418308 345969539@qq.com China 77 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Chembest Research Laboratories Limited 021-20908456 sales@BioChemBest.com China 5996 61
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Sichuan Tongsheng Amino acids Co.,Ltd. 0838-2274206 17340404235 sales@biots.cn China 300 66
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Capot Chemical Co., Ltd +86 (0) 571 85 58 67 18 China 18187 66
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60

View Lastest Price from (R)-1-Boc-3-methylpiperazine manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(R)-4-Boc-2-methylpiperazine pictures 2026-09-11 (R)-4-Boc-2-methylpiperazine
163765-44-4
$37.00-788.00 10g 0.99 25kg Shanghai UCHEM Inc.
(R)-4-N-Boc-2-methylpiperazine pictures 2022-02-10 (R)-4-N-Boc-2-methylpiperazine
163765-44-4
1KG 99.3% 100 tons Honest Joy Holdings Limited
(R)-4-Boc-2-methylpiperazine pictures 2019-07-06 (R)-4-Boc-2-methylpiperazine
163765-44-4
$2.00 1kg 99% Career Henan Chemical Co
(R)-METHYL-PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER (R)-N-BOC-2-METHYLPIPERAZINE (R)-N4-BOC-2-METHYLPIPERAZINE TERT-BUTYL (R)-3-METHYL-1-PIPERAZINECARBOXYLATE (R)-4-N-BOC-2-METHYLPIPERAZINE (R)-3-METHYL-PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER (R)-1-BOC-3-METHYLPIPERAZINE (R)-1-TERT-BUTOXYCARBONYL-3-METHYLPIPERAZINE (R)-1-N-BOC-3-METHYLPIPERAZINE (R)-3-Methyl-1-Boc-piperazine (3R)-1-BOC-3-METHYLPIPERAZINE 4-BOC-2-(R)-METHYL-PIPERAZINE 1-PIPERAZINECARBOXYLIC ACID, 3-METHYL-, 1,1-DIMETHYLETHYL ESTER, (3R)- (S)-1-BOC-3-METHYL-PIPERAZINE,(R)-1-Boc-3-methylpiperazine (R)-4-N-Boc-2-methylpiperazine (R )-4-N-Boc-2-methyl piperazine (R)-2-Methylpiperazine, N4-BOC protected (R)-1-Boc-3-methylpiperazine, tert-Butyl (R)-3-methyl-1-piperazinecarboxylate (R)-4-Boc-2-piperazinecarboxylic acid (R)-3-Methyl-Piperazine-1-Carbo (3R)-3-Methylpiperazine, N1-BOC protected tert-Butyl (R)-3-methyl-1-piperazinecarboxylate acid (R)-4-N-BOC-2-METHYL-PIPERAZINE-HCl (R)-4-Boc-2-Methylpi (R)-(+)-1-Boc-3-Methylpiperazine (R)-4-N-Boc-2-Methyl-piperazine/(R)-1-Boc-3-Methylpiperazine (R)-butyl 3-Methylpiperazine-1-carboxylate (R)-(+)-1-Boc-3-methylpiperazine,97% tert-Butyl (3R)-3-methylpiperazine-1-carboxylate, (3R)-1-(tert-Butoxycarbonyl)-3-methylpiperazine 1-Piperazinecarboxylic acid, 3-methyl-, 1,1-dimethylethyl ester, (3R)- (9CI, ACI) 3-methyl-1-Piperazinecarboxylic acid 1,1-dimethylethyl ester (3R)- (9CI ACI) (R)-tert-butyl-2- methylpiperazine-4-carboxylate (R)-4-BOC-2-METHYLPIPERAZINE (R)-tert-butyl 3-Methylpiperazine-1-carboxylate CAS:163765-44-4 tert-Butyl (3R)-3-methylpiperazine-1-carboxylate tert-butyl (R)-3-methylpiperazine-1-carboxylate 163765-44-4 345-75-7 C10H20N2O2 Chiral Building Blocks Asymmetric Synthesis Heterocyclic Building Blocks Piperazines Piperazines Piperaizine Piperazine series pharmacetical