4,7-DIAZA-SPIRO[2.5]OCTANE-7-CARBOXYLIC ACID TERT-BUTYL ESTER

Base Information

• Chemical Name: 4,7-DIAZA-SPIRO[2.5]OCTANE-7-CARBOXYLIC ACID TERT-BUTYL ESTER
• CAS No.: 886766-28-5
• Molecular Formula: C11H20N2O2
• Molecular Weight: 212.292
• Hs Code.: 2933990090
• Mol file: 886766-28-5.mol

Synonyms:4,7-Diaza-spiro[2.5]octane-7-carboxylic acid tert-butyl ester;

Chemical Property of 4,7-DIAZA-SPIRO[2.5]OCTANE-7-CARBOXYLIC ACID TERT-BUTYL ESTER

Chemical Property:

• Vapor Pressure: 0.00106mmHg at 25°C
• Refractive Index: 1.521
• Boiling Point: 301.3 ºC at 760 mmHg
• PKA: 9.54±0.20(Predicted)
• Flash Point: 136ºC
• PSA: 41.57000
• Density: 1.1 g/cm³
• LogP: 1.62600
• Storage Temp.: 2-8°C(protect from light)

Purity/Quality:

99% ^*data from raw suppliers

7-Boc-4,7-diaza-spiro[2.5]octane 95+% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4,7-DIAZA-SPIRO[2.5]OCTANE-7-CARBOXYLIC ACID TERT-BUTYL ESTER

There total 6 articles about 4,7-DIAZA-SPIRO[2.5]OCTANE-7-CARBOXYLIC ACID TERT-BUTYL ESTER which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 73.0%

di-tert-butyl dicarbonate (24424-99-5) + 4,7-diazaspiro[2.5]octane (99214-52-5) → 4,7-diazaspiro[2.5]octane-7-carboxylic acid tert-butyl ester (886766-28-5)

Guidance literature:

With sodium hydroxide; In ethanol; at 5 - 30 ℃; for 13h;

Reference yield:

4-(t-butyloxycarbonyl)piperazin-2-one (76003-29-7) → 4,7-diazaspiro[2.5]octane-7-carboxylic acid tert-butyl ester (886766-28-5)

Guidance literature:

Multi-step reaction with 3 steps

1.1: sodium hydride / tetrahydrofuran; mineral oil / 1.5 h / 0 °C

1.2: 16 h / 20 °C

2.1: titanium(IV) isopropylate / tetrahydrofuran / 16 h / -78 - 70 °C / Inert atmosphere

3.1: hydrogen; 20% palladium hydroxide-activated charcoal / ethanol / 5 h / 20 °C / Inert atmosphere

With titanium(IV) isopropylate; 20% palladium hydroxide-activated charcoal; hydrogen; sodium hydride; In tetrahydrofuran; ethanol; mineral oil;

Reference yield:

tert-butyl 4-benzyl-4,7-diazaspiro[2.5]octane-7-carboxylate (1261358-79-5) → 4,7-diazaspiro[2.5]octane-7-carboxylic acid tert-butyl ester (886766-28-5)

Guidance literature:

With 20% palladium hydroxide-activated charcoal; hydrogen; In ethanol; at 20 ℃; for 5h; Inert atmosphere;

upstream raw materials:

di-tert-butyl dicarbonate

4,7-diazaspiro[2.5]octane

1-benzyl-4-(tert-butyloxycarbonyl)piperazin-2-one

tert-butyl 4-benzyl-4,7-diazaspiro[2.5]octane-7-carboxylate

Downstream raw materials:

4-phenyl-4,7-diaza-spiro[2.5]octane-7-carboxylic acid tert-butyl ester

Refernces

• 1、 -. "A 4, 7 - diaza spiro [2.5] octane -7 - formic acid tert-butyl synthetic method". . . Retrieved 2019/01/08.