Pinacol → 2-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

HRID 1822645Notes

Reaction equation

[Cl:1][C:2]1[S:6][C:5]([B:7]([OH:9])[OH:8])=[CH:4][CH:3]=1.O[C:11]([C:14](O)([CH3:16])[CH3:15])([CH3:13])[CH3:12]>>[Cl:1][C:2]1[S:6][C:5]([B:7]2[O:9][C:14]([CH3:16])([CH3:15])[C:11]([CH3:13])([CH3:12])[O:8]2)=[CH:4][CH:3]=1

Participants

Reactant 2

HCID 6425Pinacol

HCID 27343245-Chlorothiophene-2-boronic acid

Product 1

HCID 103544942-(5-Chlorothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneYield 50%

Procedure

The title compound (50%, oil) was prepared from 5-chlorothiophen-2-boronic acid and pinacol.

Sources & evidence

ORD record: ord-79cea09d875642698a7b227eb5be8446
Source dataset: uspto-grants-2006_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07037905B2

Reaction notes

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