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Handbook of Functionalized Organometallics Applications in S

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Me 3Si<br />

Cl<br />

( ) 3<br />

R Li<br />

80%<br />

82%<br />

Scheme 13.26<br />

Cl<br />

Scheme 13.27<br />

O<br />

Cl I<br />

NC Br<br />

Scheme 13.28<br />

NC<br />

Scheme 13.29<br />

O<br />

Hept<br />

H<br />

MnBr 2<br />

1h30, r.t.<br />

13.4 Preparation <strong>of</strong> Ketones by Acylation <strong>of</strong> Organomanganese Reagents<br />

R MnBr<br />

O<br />

O<br />

PhSCH 2<br />

1) EtLi, Et 2O<br />

( ) 5<br />

61%<br />

73%<br />

O<br />

Pr<br />

O<br />

2) MnBr2 3) MeCH=CH-CH=CHCOCl<br />

1) BuLi, -90ºC, Et 2O<br />

2) MnI 2,-50ºC to-10ºC<br />

1) BuLi, -100ºC<br />

2) MnBr 2.2LiBr, -90ºC<br />

I<br />

1) Mn* (Fürstner)<br />

2)<br />

F COCl<br />

R'COCl<br />

Et 2O<br />

NC MnBr<br />

Cl<br />

Cl MnI<br />

NC<br />

R<br />

EtO<br />

EtO<br />

Cl<br />

( ) 3<br />

O<br />

Cl<br />

Cl ( ) 3<br />

82%<br />

O<br />

R'<br />

O<br />

( ) 5<br />

HCOO<br />

73%<br />

COCl<br />

Et 2O, -10ºC<br />

3% CuCl, THF<br />

O<br />

61%<br />

O<br />

78%<br />

NC<br />

O<br />

( ) 6<br />

CO2Me Cl<br />

F<br />

73%<br />

70%<br />

O<br />

Cl<br />

( ) 3<br />

553<br />

O

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