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a of the conjugate acid of BEMP in DMSO is 16.2. See: O'Donnell, M. J.; Delgado, F.; Hostettler, C.; Schwesinger, R. Tetrahedron Lett. 1998, 39, 8775-8778.
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23
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85037517296
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note
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The optimal temperature for column asymmetric catalysis of phenylketene 3a and imino ester 4 was found to be -43 °C.
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24
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84888587878
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Schwesinger, R.; Willaredt, J.; Schlemper, H.; Keller, M.; Schmitt, D.; Fritz, H. Chem. Ber. 1994, 127, 2435-2454.
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Fritz, H.6
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