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. Author manuscript; available in PMC: 2011 May 11.
Published in final edited form as: Chem Sci. 2010 Sep 1;1(3):387–392. doi: 10.1039/C0SC00280A

Table 1.

Calculated and experimental stereoselectivities for (4 + 3) cycloadditions of oxazolidinone-substituted oxyallyls with furan

Oxazolidinone Calcd ΔΔH‡ (TSA–TSB)b Exptal dr (I:II)a
graphic file with name nihms287756t1.jpg 0.2 82:18
graphic file with name nihms287756t2.jpg −0.1 23:77
graphic file with name nihms287756t3.jpg −2.3 6:94
a

298.15 K, kcal mol−1, B3LYP/6-31G(d).

b

THF, −40 to −50 °C.