N-Boc-α-tosylsarcosine ethyl ester: An α
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Diego A. Alonso; Ana Costa; Carmen Nájera
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Article
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1997
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Elsevier Science
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French
⚖ 176 KB
N-Boc-u-msylsarcosine ethyl ester (3) reacts under neutral conditions either with allylic carbonates or with vinyloxinme in the presence of a catalytic amount of Pd(PPh3) 4 and dppe (5 mol%) to give regio-and stereoselectively the corresponding allylated products $ and 6, respectively. Reductive des