Entry	R	1	Time [h]	2	Yield^b [%]	Ref.
1	C₆H₅	1a	5	2a	95	[16]
2	4-MeO-C₆H₄	1b	5	2b	88	[16]
3	4-Et-C₆H₄	1c	5	2c	90	This work
4	3,4-Me₂-C₆H₄	1d	5	2d	93	This work
5	4-Br-C₆H₄	1e	7	2e	87	[17]
6	4-Cl-C₆H₄	1f	6	2f	88	[16]
7	3-NO₂-C₆H₄	1g	6	2g	92	[18]
8	4-NO₂-C₆H₄	1h	6	2h	90	[17]
9	2-C₅H₄N	1i	5	2i	92	[19]