Schmidt Reaction of E-3-Benzylidenechromanones and E-3-Benzylidenethiochromanones

Table 2

Results of Schmidt reaction of E-3-benzylidenechromanones (2) and E-3-benzylidenethiochromanone (3a) with NaN₃/TFA.

Entry	Substrate	Product	Yield (%)
1	2a	4a	30
2	2b	4b	32
3	2g	6	29
4	3a	5a	34