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22612-89-1 Usage

Uses

1,1,3,3-Tetrabromoacetone is an intermediate in the synthesis of 3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone-13C5, which is an isotope labelled Mutagen X (MX) is a chlorinated furanone that accounts for more of the mutagenic activity of drinking water than any other disinfection byproduct. DNA damages provoked by the six mutagens (furylframide, MX, 4-nitroquinoline N-oxide, sodium azide, 1-nitropyrene, and captan) used in the present study have been known to subject to the nucleotide excision repair system.

Check Digit Verification of cas no

The CAS Registry Mumber 22612-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,6,1 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22612-89:
(7*2)+(6*2)+(5*6)+(4*1)+(3*2)+(2*8)+(1*9)=91
91 % 10 = 1
So 22612-89-1 is a valid CAS Registry Number.
InChI:InChI=1/C3H2Br4O/c4-2(5)1(8)3(6)7/h2-3H

22612-89-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,1,3,3-tetrabromopropan-2-one

1.2 Other means of identification

Product number -
Other names 1,1,3,3-Tetrabromopropanone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:22612-89-1 SDS

22612-89-1Synthetic route

acetone
67-64-1

acetone

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

Conditions
ConditionsYield
With hydrogen bromide; bromine In water for 240h; Bromination;89%
With hydrogen bromide; bromine In water at 0 - 20℃; for 78h; Inert atmosphere;70%
With bromine Acidic conditions;
With hydrogen bromide; bromine
acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

Conditions
ConditionsYield
With bromine
water
7732-18-5

water

bromine
7726-95-6

bromine

acetone
67-64-1

acetone

acid

acid

A

1,3-dibromoroacetone
816-39-7

1,3-dibromoroacetone

B

1,1,3-tribromoacetone
3475-39-6

1,1,3-tribromoacetone

C

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

acetonedicarboxylic acid
542-05-2

acetonedicarboxylic acid

water
7732-18-5

water

bromine
7726-95-6

bromine

A

pentabromoacetone
79-49-2

pentabromoacetone

B

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

acetone
67-64-1

acetone

A

1,1,3-tribromoacetone
3475-39-6

1,1,3-tribromoacetone

B

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

Conditions
ConditionsYield
With hydrogen bromide; bromine In water at 0 - 23℃; for 212h; Inert atmosphere; Overall yield = 85 g;
methanol
67-56-1

methanol

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

3,3-dibromopropenoic acid methyl ester
66656-00-6

3,3-dibromopropenoic acid methyl ester

Conditions
ConditionsYield
With sulfuric acid for 12h; Inert atmosphere; Reflux;96%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9-methylanthracene
779-02-2

9-methylanthracene

11,13-dibromo-9,10-dihydro-9-methyl-9,10-propanoanthracen-12-one
143331-53-7

11,13-dibromo-9,10-dihydro-9-methyl-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;71%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9-vinylanthracene
2444-68-0

9-vinylanthracene

11,13-dibromo-9,10-dihydro-9-vinyl-9,10-propanoanthracen-12-one
143331-54-8

11,13-dibromo-9,10-dihydro-9-vinyl-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; Product distribution; ultrasonication; other 9,10-dihydro-9,10-propanoanthracen-12-ones, other polybromo ketones, stereoselectivity;71%
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;71%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9-(but-3-en-1-yl)anthracene
97451-55-3

9-(but-3-en-1-yl)anthracene

9-(3-butenyl)-11,13-dibromo-9,10-dihydro-9,10-propanoanthracen-12-one
143331-56-0

9-(3-butenyl)-11,13-dibromo-9,10-dihydro-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;70%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

3,3-dibromopropenoic acid
1578-21-8

3,3-dibromopropenoic acid

Conditions
ConditionsYield
With sodium hydrogencarbonate at 20℃; Favorski rearrangement;67%
With sodium hydrogencarbonate In water at 20℃; for 48h; Inert atmosphere;62%
With sodium carbonate
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9-β-propenylanthracene
23707-65-5

9-β-propenylanthracene

11,13-dibromo-9,10-dihydro-9-(2-propenyl)-9,10-propanoanthracen-12-one
143331-55-9

11,13-dibromo-9,10-dihydro-9-(2-propenyl)-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;67%
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane; water at 15 - 20℃; Sonication;
2-benzyloxymethylfuran
16361-14-1

2-benzyloxymethylfuran

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

(1RS,2RS,4SR,5RS)-1-[(benzyloxy)methyl]-2-endo,4-endo-dibromo-8-oxabicyclo[3.2.1]oct-6-en-3-one

(1RS,2RS,4SR,5RS)-1-[(benzyloxy)methyl]-2-endo,4-endo-dibromo-8-oxabicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With diethylzinc In toluene 1.) 0 deg C, 3 h, 2.) 20 deg C, 3 h;65%
With diethylzinc In toluene at 0 - 20℃; for 3h;
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

tert-butyl(furan-2-ylmethoxy)dimethylsilane
121389-55-7

tert-butyl(furan-2-ylmethoxy)dimethylsilane

(1S,2S,4R,5S)-2,4-Dibromo-1-(tert-butyl-dimethyl-silanyloxymethyl)-8-oxa-bicyclo[3.2.1]oct-6-en-3-one

(1S,2S,4R,5S)-2,4-Dibromo-1-(tert-butyl-dimethyl-silanyloxymethyl)-8-oxa-bicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With diethylzinc In toluene 1.) 0 deg C, 3 h, 2.) 20 deg C, 3 h;65%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9-methoxyanthracene
2395-96-2

9-methoxyanthracene

11,13-dibromo-9,10-dihydro-9-methoxy-9,10-propanoanthracen-12-one
143345-14-6

11,13-dibromo-9,10-dihydro-9-methoxy-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;64%
furan
110-00-9

furan

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

2,4-dibromo-8-oxabicyclo<3.2.1>oct-6-en-3-one
55076-42-1, 55122-61-7, 67773-46-0

2,4-dibromo-8-oxabicyclo<3.2.1>oct-6-en-3-one

Conditions
ConditionsYield
With diiron nonacarbonyl for 48h; Heating;63%
With zinc/copper couple; 1,1-dibromomethane In acetonitrile at 20℃; for 1h; ultrasonification;
With ethylene dibromide In acetonitrile at 25℃; Sonication; Inert atmosphere;
With triethyl borate; zinc In tetrahydrofuran at 25℃; for 17h; Darkness;
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

3-cyclopropyl-1-(4-(trifluoromethyl)phenylsulfonyl)-1H-pyrrole
1215184-06-7

3-cyclopropyl-1-(4-(trifluoromethyl)phenylsulfonyl)-1H-pyrrole

2,4-dibromo-6-cyclopropyl-8-(4-(trifluoromethyl)phenylsulfonyl)-8-azabicyclo[3.2.1]oct-6-en-3-one
1215184-07-8

2,4-dibromo-6-cyclopropyl-8-(4-(trifluoromethyl)phenylsulfonyl)-8-azabicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With diethylzinc In hexane; toluene at -10 - 20℃; for 17h;62%
N-p-toluenesulfonylpyrrole
17639-64-4

N-p-toluenesulfonylpyrrole

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

8-(toluene-4-sulfonyl)-8-aza-bicyclo[3.2.1]oct-6-en-3-one
646036-43-3

8-(toluene-4-sulfonyl)-8-aza-bicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With diethylzinc In toluene at -12 - 20℃; for 18h;60%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

1-benzyloxycarbonyl pyrrole
56857-08-0

1-benzyloxycarbonyl pyrrole

3-oxo-8-aza-bicyclo[3.2.1]oct-6-ene-8-carboxylic acid benzyl ester
446873-84-3

3-oxo-8-aza-bicyclo[3.2.1]oct-6-ene-8-carboxylic acid benzyl ester

Conditions
ConditionsYield
With diethylzinc In toluene at -12 - 20℃; for 18h;57%
furan
110-00-9

furan

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

(1α,2β,4β,5α)-2,4-dibromo-8-oxabicyclo<3.2.1>oct-6-en-3-one
55076-42-1

(1α,2β,4β,5α)-2,4-dibromo-8-oxabicyclo<3.2.1>oct-6-en-3-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;56%
furan
110-00-9

furan

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

meso-8-oxabicyclo[3.2.1]oct-6-en-3-one
40458-77-3

meso-8-oxabicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
Stage #1: furan; 1,1,3,3-tetrabromoacetone With triethyl borate; zinc In tetrahydrofuran Cycloaddition; Heating;
Stage #2: With copper; ammonium chloride; zinc In methanol at -78 - 10℃; for 1h; Reduction; Further stages.;
56%
Stage #1: furan; 1,1,3,3-tetrabromoacetone With triethyl borate; bromine; zinc In tetrahydrofuran at 20℃; for 2h; Inert atmosphere; Reflux;
Stage #2: With zinc/copper couple; ammonium chloride In methanol at 0 - 20℃; for 1.5h; Inert atmosphere;
43%
With triethyl borate; copper; ammonium chloride; zinc Multistep reaction;
Cycloaddition;
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9,10-dimethoxyanthracene
2395-97-3

9,10-dimethoxyanthracene

9,10-dimethoxy-9,10-propanoanthracen-12-one

9,10-dimethoxy-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With copper(l) chloride; zinc In 1,4-dioxane at 20 - 50℃; for 9h; Cycloaddition; sonication;56%
furfurylacetate
623-17-6

furfurylacetate

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

(1S*,2R*,4S*,5R*)-1-acetoxymethyl-2,4-dibromo-8-oxabicyclo<3.2.1>oct-6-en-3-one

(1S*,2R*,4S*,5R*)-1-acetoxymethyl-2,4-dibromo-8-oxabicyclo<3.2.1>oct-6-en-3-one

Conditions
ConditionsYield
With silver; zinc In tetrahydrofuran at 20℃; for 12h;52%
3-furan-2-yl-propan-1-ol
26908-23-6

3-furan-2-yl-propan-1-ol

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

2,4-Dibromo-1-(3-hydroxy-propyl)-8-oxa-bicyclo[3.2.1]oct-6-en-3-one

2,4-Dibromo-1-(3-hydroxy-propyl)-8-oxa-bicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With diethylzinc In hexane; benzene at 0 - 20℃; for 5h;51%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

2,5-furandimethanol dimethyl ether
18801-76-8

2,5-furandimethanol dimethyl ether

1,5-bis-methoxymethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-one
257860-37-0

1,5-bis-methoxymethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
Stage #1: 1,1,3,3-tetrabromoacetone; 2,5-furandimethanol dimethyl ether With triethyl borate; zinc In tetrahydrofuran at 20℃; for 18.25h;
Stage #2: With ammonium chloride; copper(l) chloride In methanol at 20℃; for 16h;
51%
2-furoic acid methyl ester
611-13-2

2-furoic acid methyl ester

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

(1R,2R,4S,5R)-2,4-Dibromo-3-oxo-8-oxa-bicyclo[3.2.1]oct-6-ene-1-carboxylic acid methyl ester

(1R,2R,4S,5R)-2,4-Dibromo-3-oxo-8-oxa-bicyclo[3.2.1]oct-6-ene-1-carboxylic acid methyl ester

Conditions
ConditionsYield
With diethylzinc In toluene 1.) 0 deg C, 3 h, 2.) 20 deg C, 3 h;50%
methyl 1H-pyrrole-1-carboxylate
4277-63-8

methyl 1H-pyrrole-1-carboxylate

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

methyl 3-oxo-8-azabicyclo<3.2.1>oct-6-ene-8-carboxylate
53416-89-0

methyl 3-oxo-8-azabicyclo<3.2.1>oct-6-ene-8-carboxylate

Conditions
ConditionsYield
With diethylzinc In toluene at -12 - 20℃; for 18h;40%
With diiron nonacarbonyl; copper; ammonium chloride; zinc 1.) benzene, 50 deg C, 72 h; 2.) CH2Cl2/MeOH, r.t., 3 h; Yield given. Multistep reaction;
di-furan-2-yl-methanone
17920-86-4

di-furan-2-yl-methanone

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

(1SR,5RS)-1-(2-furoyl)-8-oxabicyclo[3.2.1]oct-6-en-3-one

(1SR,5RS)-1-(2-furoyl)-8-oxabicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With diethylzinc In hexane; benzene at 20℃;40%
methyl 1H-pyrrole-1-carboxylate
4277-63-8

methyl 1H-pyrrole-1-carboxylate

1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

methyl (1RS,5SR)-3-oxo-8-azabicyclo[3.2.1]oct-6-ene-8-carboxylate

methyl (1RS,5SR)-3-oxo-8-azabicyclo[3.2.1]oct-6-ene-8-carboxylate

Conditions
ConditionsYield
Stage #1: methyl 1H-pyrrole-1-carboxylate; 1,1,3,3-tetrabromoacetone With zinc/copper couple; triethyl borate; bromine In hexane; toluene at 0 - 20℃; for 24h; Inert atmosphere;
Stage #2: With ammonium chloride; zinc In methanol at 20℃; for 2.5h;
40%
Stage #1: methyl 1H-pyrrole-1-carboxylate; 1,1,3,3-tetrabromoacetone With diethylzinc
Stage #2:
Stage #1: methyl 1H-pyrrole-1-carboxylate; 1,1,3,3-tetrabromoacetone With diethylzinc
Stage #2:
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

{[5-(but-3-en-1-yloxy)furan-2-yl]methoxy}(tert-butyl)dimethylsilane
1337876-93-3

{[5-(but-3-en-1-yloxy)furan-2-yl]methoxy}(tert-butyl)dimethylsilane

(1RS,5SR)-1-(but-3-en-1-yloxy)-5-{[(tert-butyldimethylsilyl)oxy]methyl}-8-oxabicyclo[3.2.1]oct-6-en-3-one

(1RS,5SR)-1-(but-3-en-1-yloxy)-5-{[(tert-butyldimethylsilyl)oxy]methyl}-8-oxabicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
Stage #1: 1,1,3,3-tetrabromoacetone; {[5-(but-3-en-1-yloxy)furan-2-yl]methoxy}(tert-butyl)dimethylsilane With diethylzinc In hexane; toluene at 0 - 20℃; Inert atmosphere;
Stage #2: With zinc/copper couple; ammonium chloride In methanol at 20℃; for 1h; Inert atmosphere;
38%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

6-acetoxyfulvene
699-15-0

6-acetoxyfulvene

C11H12O3

C11H12O3

Conditions
ConditionsYield
With zinc/copper couple; 1,1-dibromomethane In acetonitrile at 23℃; for 1.58333h; Inert atmosphere; Sonication;27%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

9-cyclopropylanthracene
26979-34-0

9-cyclopropylanthracene

9-cyclopropyl-9,10-dihydro-9,10-propanoanthracen-12-one
143331-57-1

9-cyclopropyl-9,10-dihydro-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 15 - 20℃; for 8h; ultrasonication;26.5%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

1-benzyloxycarbonyl pyrrole
56857-08-0

1-benzyloxycarbonyl pyrrole

3-oxo-8-azabicyclo[3.2.1]oct-6-ene-8-carboxylic acid phenylmethyl ester

3-oxo-8-azabicyclo[3.2.1]oct-6-ene-8-carboxylic acid phenylmethyl ester

Conditions
ConditionsYield
Stage #1: 1,1,3,3-tetrabromoacetone; 1-benzyloxycarbonyl pyrrole With diethylzinc In toluene at -12 - 20℃; for 20h; Inert atmosphere; Schlenk technique;
Stage #2: With zinc/copper couple; ammonium chloride at 0℃; for 1h; Inert atmosphere; Schlenk technique;
24%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

anthracene
120-12-7

anthracene

9,10-dihydro-9,10-propanoanthracen-12-one
143331-52-6

9,10-dihydro-9,10-propanoanthracen-12-one

Conditions
ConditionsYield
With chloro-trimethyl-silane; copper(l) chloride; zinc In 1,4-dioxane at 80℃; for 6h;22%
1,1,3,3-tetrabromoacetone
22612-89-1

1,1,3,3-tetrabromoacetone

3-(5-(4-ethylphenyl)pentyl)furan

3-(5-(4-ethylphenyl)pentyl)furan

6-(5-(4-ethylphenyl)pentyl)-8-oxabicyclo[3.2.1]oct-6-en-3-one

6-(5-(4-ethylphenyl)pentyl)-8-oxabicyclo[3.2.1]oct-6-en-3-one

Conditions
ConditionsYield
With copper; diiron nonacarbonyl In benzene at 60℃; for 2.5h;17%

22612-89-1Relevant articles and documents

Synthesis of tetrahydrofuran-based natural products and their carba analogs via stereoselective enzyme mediated Baeyer–Villiger oxidation

Rudroff, Florian,Bianchi, Dario A.,Moran-Ramallal, Roberto,Iqbal, Naseem,Dreier, Dominik,Mihovilovic, Marko D.

, p. 7212 - 7221 (2016)

In this work we present efficient formal syntheses of several biologically interesting natural products (showdomycin, goniofufurone, trans-kumausyne) and their novel carba analogs by applying different Baeyer–Villiger monooxygenases. This strategy provides access to tetrahydrofuran-based natural products, C-nucleosides and both antipodes of the corresponding carba analogs in high optical purities (up to >95% ee) starting from simple achiral and commercially available building blocks (tetrabromoacetone, furan and cyclopentadiene). The striking key features of this chemo-enzymatic approach are the introduction of four stereogenic centers in as few as three reaction steps within a desymmetrization approach and the short-cut of several reaction sequences by the implementation of a biocatalytic step.

A Desymmetrization-Based Total Synthesis of Reserpine

Park, Jisook,Chen, David Y.-K.

supporting information, p. 16152 - 16156 (2018/11/23)

Reported herein is a desymmetrization-based synthetic approach to the fused polycyclic indole alkaloid reserpine. The centerpiece of the developed strategy features an internal desymmetrization process that enabled the use of a readily accessible and nonstereogenic reserpine E-ring precursor, in contrast to the synthesis-intensive and stereodefined E-ring intermediates employed in all past reserpine syntheses. Utilization of inexpensive reagents through an orchestrated sequence of carefully selected chemical transformations further highlight the overall effectiveness of the developed pathway.

Synthesis of the C38-C44 segment of altohyrtin A - with an addendum on the preparation of 8-oxabicyclo[3,2.1]oct-6-en-3-one

Kim,Hoffmann

, p. 2195 - 2201 (2007/10/03)

The densely funtionalized C38-C44 segment F of altohyrtin A with its five contiguous stereogenic centers was prepared in 10 steps and in 28% overall yield (two steps per stereogenic center), from 8- oxabicyclo[3.2.1]oct-6-en-3-one as a template. The preparation of the title compound 1, m.p. 38 °C, is described on a 0.5 m scale in a three-step-two- stage reaction from acetone anti furan. The oxacycle was stored without change at room temperature.

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