09.02.2013 Views

Nitrile Oxides, Nitrones, and Nitronates in Organic Synthesis : Novel ...

Nitrile Oxides, Nitrones, and Nitronates in Organic Synthesis : Novel ...

Nitrile Oxides, Nitrones, and Nitronates in Organic Synthesis : Novel ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

a<br />

b<br />

c<br />

d<br />

REACTIONS OF DIPOLAR 1,3-CYCLOADDITION ([3 + 2] CYCLOADDITION) 303<br />

R<br />

+ N<br />

−<br />

O<br />

R<br />

+ N<br />

−<br />

O<br />

+<br />

N<br />

O<br />

−<br />

O<br />

Bn +<br />

N<br />

−<br />

O<br />

CH3<br />

CH3<br />

O H<br />

N H<br />

Bzl<br />

O<br />

R<br />

H<br />

H<br />

N<br />

O<br />

H<br />

H<br />

R = Me, Bu t , C(CH 3) 2CH 2OH<br />

O<br />

R = Me, Bu t<br />

O<br />

O<br />

H<br />

N O<br />

R H<br />

H<br />

N<br />

O<br />

H<br />

N<br />

H<br />

Bn<br />

N<br />

O<br />

Cl<br />

N<br />

O<br />

H<br />

N<br />

N<br />

OH<br />

Scheme 2.214<br />

O<br />

CH3<br />

H<br />

R<br />

H<br />

H<br />

N<br />

O<br />

H<br />

H<br />

O<br />

CH3<br />

CH3<br />

R<br />

N<br />

H<br />

H<br />

CH3 N Bzl<br />

+<br />

O N Bzl<br />

H H<br />

H<br />

H<br />

N<br />

O<br />

CH3 I<br />

+<br />

H<br />

O<br />

H<br />

−<br />

O<br />

+<br />

O<br />

OH<br />

OH<br />

CH3 H<br />

H<br />

N<br />

O<br />

H<br />

+<br />

N<br />

H3C H<br />

H<br />

H<br />

O<br />

N<br />

H<br />

CH3<br />

H<br />

Bzl<br />

OH

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!