January 18, 2025

CAS No. 348098-29-3

 

Product Details of [ 348098-29-3 ]

CAS No. : 348098-29-3 MDL No. : MFCD07375142
Formula : C5H7BN2O2S Boiling Point :
Linear Structure Formula : InChI Key : SLNVTXVTMQIKCE-UHFFFAOYSA-N
M.W : 170.00 Pubchem ID : 2763263
Synonyms :

Computed Properties of [ 348098-29-3 ]

TPSA : 91.5 H-Bond Acceptor Count : 5
XLogP3 : H-Bond Donor Count : 2
SP3 : 0.20 Rotatable Bond Count : 2

Safety of [ 348098-29-3 ]

Signal Word: Warning Class N/A
Precautionary Statements: P261-P305+P351+P338 UN#: N/A
Hazard Statements: H315-H319-H335 Packing Group: N/A
GHS Pictogram:

Application In Synthesis of [ 348098-29-3 ]

  • Upstream synthesis route of [ 348098-29-3 ]
Yield Reaction Conditions Operation in experiment
73% Stage #1: With n-butyllithium In tetrahydrofuran at -78℃; for 1.00 h; Inert atmosphere
Stage #2: at -78℃; for 4.00 h;
Step 2:
Synthesis of 2-(methylthio)pyrimidin-5-yl-5-boronic acid
To a stirred solution of 5-bromo-2-(methylthio)pyrimidine (0.05 g, 0.241 mmol) in THF (10 mL) at -78° C. was added n-Butyl lithium (0.15 mL, 0.36 mmol, 2.5M in hexane) under nitrogen and stirred for 1 h at the same temperature.
Triisopropyl borate (0.068 g, 0.361 mmol) was then added drop wise to the reaction mixture, stirred for 4 h at -78° C.
Progress of reaction was monitored by TLC.
After completion reaction mass was quenched with ice cold water and partitioned between saturated NH4Cl solution and EtOAc.
The organic layer was washed with brine, dried over sodium sulphate and concentrated under reduced pressure to give 2-(methylthio)pyrimidin-5-yl-5-boronic acid (0.03 g, 73percent) as off-white solid.
MS: 171.1 [M++1]

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