Table 2.

Synthesis of carbimidates 12, 13, 14 and 15 from 11 series.

Product	Yield a (%)	Product	Yield a (%)	Product	Yield a (%)	Product	Yield a (%)
12a	91	12h	70	13a	87	14a	93
12b	71	12i	80	13b	58	14b	76
12c	76	12j	86	13c	55	14c	72
12d	92	12k	68	13d	65	14d	80
12e	89	12l	74	13e	90	14e	92
12f	76	12m	82	13f	86	15a	88
12g	92	12n	90	13g	94	15b	65
-	-	-	-	13h	62	15c	90

^a Isolated yield.