. Author manuscript; available in PMC: 2010 Oct 1.

Published in final edited form as: Org Lett. 2009 Oct 1;11(19):4330–4333. doi: 10.1021/ol901669k

Table 1.

One-Pot Preparation of Potassium Haloaryltrifluoroborates from Various Aryl Dihalides^a


entry	X–Ar–X	product		yield
1			1a-Br 1a-I	86% 90%
2			2a-Br 2a-I	56% 85%
3			3a –	52% –
4			4a	81%
5			5a	47%
6			6a	82%
7			7a	82%
8			8a	72%
9			9a	90%
10			10a	87%
11			11a	90%
12			12a	85%
13			13a	93%
14			14a	94%
15			15a	90%
16			16a	80%

Reaction conditions: aryl dihalide (2.0 mmol), triisopropyl borate (2.0 mmol), and n-BuLi (2.0 mmol) at −78 °C to rt under N₂ and then quenched with 1 N KHF₂.