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2005
Cycloaddition reactions
O 0070
Oxazaborolidine-Derived Lewis Acid Assisted Lewis Acid as a Moisture-Tolerant
for Enantioselective Diels—Alder Reactions. — The combination of a
27- 037 Catalyst
chiral oxazaborolidine with SnCl4 generates an efficient chiral Lewis acid-assisted
Lewis acid (LLA) which is successfully applied in enantioselective Diels—Alder cycloaddition reactions. Very small amounts of SnCl4 are necessary. The catalytic system
tolerates small amounts of water and other Lewis bases without loss of enantioselectivity. — (FUTATSUGI, K.; YAMAMOTO*, H.; Angew. Chem., Int. Ed. 44 (2005)
10, 1484-1487; Dep. Chem., Univ. Chicago, Chicago, IL 60637, USA; Eng.) —
Mischke
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