5,6-dihydro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-Pyrrolo[1,2-b]pyrazole

Base Information

• Chemical Name: 5,6-dihydro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-Pyrrolo[1,2-b]pyrazole
• CAS No.: 1314138-13-0
• Molecular Formula: C12H19BN2O2
• Molecular Weight: 234.106
• Mol file: 1314138-13-0.mol

Synonyms:5,6-dihydro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-Pyrrolo[1,2-b]pyrazole;3-(tetramethyl-1,3,2-dioxaborolan-2-yl)-4H,5H,6H-pyrrolo[1,2-b]pyrazole

Chemical Property of 5,6-dihydro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-Pyrrolo[1,2-b]pyrazole

Chemical Property:

• Boiling Point: 361.1±30.0 °C(Predicted)
• PKA: 2.59±0.20(Predicted)
• PSA: 36.28000
• Density: 1.16±0.1 g/cm3(Predicted)
• LogP: 1.12850

Purity/Quality:

97% ^*data from raw suppliers

3-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-4H,5H,6H-pyrrolo[1,2-b]pyrazole ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

• Uses: 3-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-4H,5H,6H-pyrrolo[1,2-b]pyrazole (cas# 1314138-13-0) is a useful reagent for preparation of pyrimidine derivatives for use as human PI3K-delta inhibitors.

Technology Process of 5,6-dihydro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-Pyrrolo[1,2-b]pyrazole

There total 9 articles about 5,6-dihydro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-Pyrrolo[1,2-b]pyrazole 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: 84.0%

2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (61676-62-8) + 3-iodo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole → 3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole (1314138-13-0)

Guidance literature:

With isopropyl magnesium lithium chloride; In tetrahydrofuran; at 4 ℃; for 2h;

Reference yield:

Triisopropyl borate (5419-55-6) + 3-bromo-5,6-dihydro-4H-pyrrolo<1,2-b>pyrazole (174790-35-3) → 3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole (1314138-13-0)

Guidance literature:

3-bromo-5,6-dihydro-4H-pyrrolo<1,2-b>pyrazole; With n-butyllithium; In tetrahydrofuran; hexane; at -78 ℃; for 0.75h;

Triisopropyl borate; In tetrahydrofuran; hexane; at -78 - 20 ℃; for 1h; Further stages;

Reference yield:

2,3-dimethyl-2,3-butane diol (76-09-5) + 3-bromo-5,6-dihydro-4H-pyrrolo<1,2-b>pyrazole (174790-35-3) → 3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole (1314138-13-0)

Guidance literature:

3-bromo-5,6-dihydro-4H-pyrrolo<1,2-b>pyrazole; With n-butyllithium; In tetrahydrofuran; at -78 ℃; for 0.75h;

With Triisopropyl borate; In tetrahydrofuran; at -78 - 20 ℃; for 1h;

2,3-dimethyl-2,3-butane diol; With acetic acid; In tetrahydrofuran;

upstream raw materials:

6-chlorohexa-1-en-3-one

1,2-dibromo-6-chlorohexan-3-one

3-(3-chloropropyl)-1H-pyrazole

5,6-dihydro-4H-pyrrolo<1,2-b>pyrazole