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1,2-Chirality Transfer in the Synthesis of Cyclopropanes

✍ Scribed by Pablo Wessig; Olaf Mühling

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 110 KB
Volume: 44
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.200501481

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## Abstract L‐Amino acids (L‐Ala, L‐Phe, L‐Val, L‐Pro) were used as a source of chirality in the diastereoselective synthesis of tetrahydroisoquinoline derivatives. The key step was the Pictet−Spengler condensation of ketoamides **4** and **10**, which proceeded under very mild conditions. L‐Ala, L