On stereochemistry of osmium tetroxide oxidation of allylic alcohol systems: examples

On stereochemistry of osmium tetroxide oxidation of allylic alcohol systems: examples

Tetrahedron Letters,Vo1.24,No.37,pp Printed in Great Britain ON STEREOCHEMISTRY OF OSMIUM 0040-4039/83 $3.00 + .OO 01983 Pergamon Press Ltd. 3947-...

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Tetrahedron Letters,Vo1.24,No.37,pp Printed in Great Britain

ON STEREOCHEMISTRY

OF OSMIUM

0040-4039/83 $3.00 + .OO 01983 Pergamon Press Ltd.

3947-3950,1983

TETROXIDE

OXIDATION

OF ALLYLIC

ALCOHOL

SYSTEMS:

EXAMPLES

W. J. Christ, Department

of Chemistry,

Forty-two

Abstract:

examples

formulation

In the outcome mulation known

preceding

of osmium

in the

compounds fied

and

into

at only

or alkoxyl compound

(b) conjugated

end

cases

group

the

at both

ratio

of

examples

from

examples

are

ends

due

of the and

this

are

their

02138,

USA

of

the empirical

of the

stereochemical

divided

nonconjuqated

to a hydroxyl cases

where

olefinic minor

as well

in the Table

further

The

for-

classification

into

(a) nonconjugated

compounds group

center

ratio

are

of

classi-

is present

due

to a hydroxyl

indicated

predicted

stereoisomers,

This

as examples

with

or alkoxyl a chiral

bond.

1,2

derivatives.

laboratory

Finally,

(2) the

the major

and

listed

systems

center and

formulation

alcohols

compounds.

bond,

the consistency

an empirical

Acyclic

a chiral

olefinic

is present

represents

selected

Massachusetts

paper.

of allylic

carbonyl

where

of the

presented

systems.

and Y. Kishi* Cambridge,

to demonstrate

preceding

unpublished

Some

(B) cyclic

(1) the

one

in the

oxidation

with

J. K. Cha, University,

presented

we have

paper,

tetroxide

literature. and

are

proposed

is consistent

(A) acyclic

Harvard

by

for

this

each

empirical

formulation. Seventeen

examples

fact

that,

tive

osmylation

alkoxyl seem

group

SV20.21, This

exceptions

are

Related stereochemical Preliminary paper

have

product

obtained

Acknowledgment National his

(examples

that

appreciation

Financial

for

to these

35 and --

assistance

poor

a chiral

bond

(examples

each

in compounds

also

other for

conjugated

must

except

due

under one

22,

A-a-2),

the

their

or

effects

in compounds

24 and --

Is,

26.

compounds

carefully,

out

stereoselec-

to a hydroxyl

another

carbonyl

be made

to point

in directing

center

complement

systems

for

since

(examples at

least

two

osmylation,

oxidation of

it would

of allylic of

the

the major

be

alcohols

olefins

interesting and

their

described

product

corresponds

Science

Foundation

to examine

the

derivatives.

in the to that

preceding of

the major

oxidation.5

from

(NS 12108)

a postdoctoral

where

are

two groups

oxidation

stereochemistry

of Health

cases

explanation

groups

36).314

formulation

tetroxide

further

acyl

olefinic

of

counteract

on permanganate the

by osmium

Institutes

of the

effects

of permanganate

experiments

the

to be applicable

empirical

outcome

shown

they

application

known

to the

while

ends

the

require paper,

For

and -17).

is,

seems

However,

do not

preceding

at both

that

formulation

A-b).

2

is present

-23 and 25,

A-a-l

in the

(examples

to be additive;

under

under

as mentioned

the National is gratefully

fellowship

from

3947

acknowledged.

Merck,

Sharp

and

One

(CHE of us

Dohme.

78-06296) (WJC)

and

the

expresses

3948

Table

A. Acyclic

System3

a. Nonconjugated

Compounds

- 1

G8 :

Fatlo

= 1:o

R=X2=H. X1=CH*OMe g8 :

Patio

= *:1

R = cFyMe,

2 = x2 =

acetonL%

14 lo

10

11

:

Ratio = 1:O x = SLm)2w-B”l,

:

Ratio

R =

=

7:l

(CH2) 202X (Ph)

z(t-N

15

11

:

Rat10

x = Si(Ph)*M3U),

a. Nonconjugated

Compounds

- 2

R

=

B-O”

= 4:l R =

B-oaz1

3949

Table A. a. Nonconjugated

A. Acyclic

- 2 (Continued)

Systems

b. Conjugated

B. Cyclic

Compounds

Carbonyl

Systems

Compounds

(Continued)

3950

References 1.

J. K. Cha, W. J. Christ,

2.

For a review on osmium

3.

H. Fujioka,

7367

K.

J.

Tetrahedron

oxidation,

to the differences and isolated

carbonyl

may take the preferred

rule.

(1959).

In the organic

Gilbert

stork at Columbia esters.

the one expected The experiment interesting

fashion, dicted

colloquium

compounds. somewhat

R. H. Cornforth,

conformation

Namely,

resembling

University

discussed

0~04 oxidation

outcome

by Iwai and Tomita

Potassium

Assuming

permanganate

for osmium

tetroxide

oxidation

oxidation

outcome

for the

J. Chem. Sot., 112 Professor

was also opposite

to

Bull. Japan, 2, 976 (1961)l is

of diene -43 yielded

arabinose,

takes place on the diene system

of permanganate

oxidation

was opposite

but

in a stepwise

to that pre-

oxidation.

Adv. Carbohydr.

This ratio is based on the amount of product(s) W. J. Christ,

9.

S. S. Ko, M. Yonaga,

J. K. Cha, and Y. Kishi, and Y. Kishi,

S. S. Ko, J. M. Finan, M. Yonaga,

:

arabinose

2, 107 (1946).

Chem.,

8.

104,

carbonyl

of trisubstituted

of his example

[Chem. Pharm.

permanganate

7.

10.

J. Am.

the dipole model

on March 14, 1983, at Harvard University,

The stereochemical

the stereochemical

R. Lespieau,

(1980).

between

unsaturated

and K. K. Mathew,

-45 6.

187

and Y. Hirata,

from this formulation.

reported

to add.

not ribose.

in the preferred

olefinic

conformation

See, J. W. Cornforth,

a,&unsaturated

Chem. Rev., _, 80

see M. Schroder,

(1982).

a,@unsaturated compounds

Lett., 24, 0000 (1983).

Cha, J. Leder, Y. Kishi, D. Uemura,

This might be attributed

Cram's

5.

tetroxide

W. J. Christ,

Chem. Sot., 104, 4.

and Y. Kishi,

and Footnotes

isolated

unpublished

unpublished

by crystallization.

results.

results.

Y. Kishi, D. Uemura,

and Y. Hirata,

J. Am. Chem. Sot.,

7364 (1982).

11.

S. H. Kang, W. W. McWhorter,

12.

J. A. Secrist,

13.

T. Katsuki,

and Y. Kishi, unpublished

III and K. D. Barnes,

A. W. M. Lee, P. Ma, V. S. Martin,

and F. J. Walker,

J. Org. Chem.,

47, 1373

14.

N.

15.

R. Behrend

and G. Heyer, Justus Liebigs

16.

H. Fujioka

and Y. Kishi,

K. Kochetkov

and B. A. Dmitriev,

unpublished

Th. Posternak

and H. Friedli,

Wolczunowicx,

Bars, Cocu, and Posternak

Chim. Acta,

K. B. Sharpless,

z,

803 (1965).

Ann. Chem., 418,

Helv. Chim. Acta, 6,

the stereochemistry

pointed

294

(1919).

251 (1953).

out the importance

of 0s04 oxidation

R. M. Srivastava

20.

D. M. Vyas and G. W. Hay, Can. J. Chem., 53,

and R. K. Brown, Can. J. Chem., 49,

1339

1362 (1975).

of homoallylic

hydroxyl

of polyhydroxycyclopentenes

53, 2288 (1970) and references cited therein].

19.

(Received in USA 24 May 1983)

D. Tuddenham,

results.

18.

in directing

4526 (1980).

S. Masamune,

(1982).

Tetrahedron,

17.

groups

results,

J. Org. Chem., 45,

(1971).

[Helv.