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. 2014 Jul 3;136(28):9802–9805. doi: 10.1021/ja502252t

Table 1. Thermal Rearrangements of 4,6-Fused Cyclobutenamides 1.

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a

All are isolated yields.

b

Recovered starting 1.

c

Mbs = para-methoxy-benzene-sulfonyl; Ns = para-nitro-benzene-sulfonyl.

d

Complete recovery of 1.