Read e-book online Annual Reports in Organic Synthesis–1976 PDF

HOAc, E t 3N ArC(CL)=CHCH=C(Y)CN Y = c o 2h, CN, CSNH2 50-80% 44 c o 2Et, conh2 , CARBON-CARBON BONDS FORMING REACTIONS I . A . 7 . a . 2-1 D. Seebach and F. I n t . Ed. E n g . , I J , 505 ( 1976) . R 1 CH „0 Lehr, Angew. Chem. 1) 2 eq. n-BuLi, -90° „ THF, 2) HMPT R 2C0R3 OH R1CHCOR2 I no2 or R1CHCR2R I no2 A B R2 R3 Et MeO MeO 55( A) i -P r MeO Cl 65( A) i -P r Me OAc 30( A) i - Pr n-Pr OMe 60( A) Et Ph H 80(B) Et Me Me 40(B) R1 Et % Yield 65(B) 4 ( : h 2^ 45 3 ORGANIC SYNTHESIS— 1976 I .

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