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inquiryName: 3-Isobutylglutaric anhydride Synonyms: 4-Isobutyldihydro-2H-pyran-2,6(3H)-dione CAS:185815-59-2 MF: C9H14O3 Appearance:White Powder Storage:Store in cool and dry place, away from sun light. Package:25kg Application: organic synthesis Transp
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inquiryProduct name: 3-Isobutylglutaric Anhydride CAS No.: 185815-59-2 Molecule Formula:C9H14O3 Molecule Weight:170.21 Purity: 98.0% Package: 200kg/drum Description:Colorless to light yellow liquid Manufacture Standards:Enterprise Standard
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inquiry5-methyl-3-carboxymethylhexanoic acid
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
With propionic acid anhydride at 140 - 145℃; for 6h; | 91% |
With acetyl chloride at 20 - 55℃; for 3.08333h; Inert atmosphere; | 85% |
at 150℃; unter vermindertem Druck; |
Conditions | Yield |
---|---|
Stage #1: isovaleraldehyde; cyanoacetic acid amide; piperidine In dichloromethane; water at 22 - 25℃; for 6h; Stage #2: With hydrogenchloride In water for 20h; Heating; Stage #3: With acetic anhydride for 2h; Heating; Further stages.; | 65% |
diethyl 2-(3-methylbutylidene)malonate
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: di-n-propylamine / 16 h / 15 - 55 °C 2: hydrogen bromide / water / 72 h / 100 °C 3: acetyl chloride / 3.08 h / 20 - 55 °C / Inert atmosphere View Scheme |
2-isobutyl-propane-1,1,3,3-tetracarboxylic acid tetraethyl ester
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: hydrogen bromide / water / 72 h / 100 °C 2: acetyl chloride / 3.08 h / 20 - 55 °C / Inert atmosphere View Scheme |
isovaleraldehyde
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: piperidine; pyridine; acetic acid / hexane / 48 h / Reflux; Inert atmosphere 2: di-n-propylamine / 16 h / 15 - 55 °C 3: hydrogen bromide / water / 72 h / 100 °C 4: acetyl chloride / 3.08 h / 20 - 55 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 3 steps 1: tetramethyl ammoniumhydroxide; trimethyldodecylammonium chloride / ethanol / 6 h / 25 °C 2: water; hydrogenchloride / 30 h / 140 °C / pH 1 - 2 3: acetic anhydride / 2 h / 120 °C View Scheme |
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: water; hydrogenchloride / 30 h / 140 °C / pH 1 - 2 2: acetic anhydride / 2 h / 120 °C View Scheme |
3-isobutylglutaric anhydride
(±)‑3‑(carbamoylmethyl)‑5‑methylhexanoic acid
Conditions | Yield |
---|---|
With ammonia In water at -10 - 40℃; for 1.5h; | 100% |
With ammonium hydroxide at 10℃; for 2h; Temperature; | 95% |
Stage #1: 3-isobutylglutaric anhydride With ammonia In tert-butyl methyl ether; water at 0 - 20℃; Stage #2: With hydrogenchloride In tert-butyl methyl ether; water pH=2; | 80.4% |
3-isobutylglutaric anhydride
Cyclohexanethiol
(-)-3-cyclohexylsulfanylcarbonylmethyl-5-methyl-hexanoic acid
Conditions | Yield |
---|---|
In tert-butyl methyl ether at 20℃; for 72h; Product distribution / selectivity; Inert atmosphere; | 100% |
3-isobutylglutaric anhydride
(R)-1-phenyl-ethyl-amine
(3R)-5-methyl-3-(2-oxo-2-{[(1R)-1-phenylethyl]amino}ethyl)hexanoic acid
Conditions | Yield |
---|---|
Stage #1: 3-isobutylglutaric anhydride; (R)-1-phenyl-ethyl-amine With dmap In ethyl acetate at 0 - 5℃; for 1.75 - 2.33h; Stage #2: With sodium hydrogencarbonate In water; ethyl acetate Stage #3: With hydrogenchloride In water pH=2 - 2.5; Product distribution / selectivity; | 99.3% |
Stage #1: 3-isobutylglutaric anhydride; (R)-1-phenyl-ethyl-amine With dmap In isopropyl alcohol at 0 - 5℃; for 1.75 - 2.33h; Stage #2: With sodium hydrogencarbonate In water; isopropyl alcohol Stage #3: With hydrogenchloride In water pH=2 - 2.5; Product distribution / selectivity; | 99.34% |
Stage #1: 3-isobutylglutaric anhydride; (R)-1-phenyl-ethyl-amine With dmap In toluene at 0 - 5℃; for 1.75 - 2.33h; Stage #2: With sodium hydrogencarbonate In water; toluene Stage #3: With hydrogenchloride In water pH=2 - 2.5; Product distribution / selectivity; | 99.6% |
methanol
3-isobutylglutaric anhydride
3-isobutylglutaric acid methyl ester
Conditions | Yield |
---|---|
at 20℃; for 16 - 18h; Product distribution / selectivity; | 97% |
Stage #1: methanol; 3-isobutylglutaric anhydride With triethylamine at 20℃; for 16 - 18h; Stage #2: With hydrogenchloride; water Product distribution / selectivity; | 95% |
methanol
3-isobutylglutaric anhydride
(3R)-3-(2-methoxy-2-oxoethyl)-5-methylhexanoic acid
Conditions | Yield |
---|---|
With N-((1S)-(6-methoxyquinolin-4-yl)((2S,4S,5R)-5-vinylquinuclidin-2-yl)methyl)-3,5-bis(trifluoromethyl)benzenesulfonamide In tert-butyl methyl ether at -20℃; for 14h; optical yield given as %ee; enantioselective reaction; | 96% |
Stage #1: methanol; 3-isobutylglutaric anhydride; Q-BTBSA In tert-butyl methyl ether at -20℃; for 14h; Stage #2: With hydrogenchloride In tert-butyl methyl ether; water Product distribution / selectivity; | 96% |
With Quinine In toluene at -70℃; for 17h; Product distribution / selectivity; | 95% |
With Cinchonidin In toluene at -50℃; for 15h; Product distribution / selectivity; |
3-isobutylglutaric anhydride
phenylmethanethiol
(R)-3-(2-(benzylthio)-2-oxoethyl)-5-methylhexanoic acid
Conditions | Yield |
---|---|
With N-((1R,2R)-2-(dimethylamino)-1-(4-nitrophenyl)-3-(trityloxy)propyl)-3,5-bis(trifluoromethyl)benzene-sulfonamide In tert-butyl methyl ether at -20℃; Inert atmosphere; Schlenk technique; enantioselective reaction; | 96% |
Conditions | Yield |
---|---|
With (S)-2-(3-(3,5-bis(trifluoromethyl)phenyl)thioureido)-N,N,4-trimethyl-N-(4-nitrobenzyl)(pentan-1-ylammonium) chloride In tert-butyl methyl ether at -10℃; for 16h; Solvent; Reagent/catalyst; Inert atmosphere; | 96% |
methanol
3-isobutylglutaric anhydride
(3S)-3-(2-methoxy-2-oxoethyl)-5-methylhexanoic acid
Conditions | Yield |
---|---|
With Cinchonin In toluene at -78 - -50℃; for 15 - 19h; Product distribution / selectivity; | 90% |
With quinidine In toluene at -78 - -50℃; for 2 - 96h; Product distribution / selectivity; | 87% |
In tert-butyl methyl ether at 20 - 25℃; for 3h; Enzymatic reaction; | n/a |
3-isobutylglutaric anhydride
isopropyl alcohol
isopropyl {4-methyl-2-[(1-carboxy)-methyl]-pentyl}-carbamate
Conditions | Yield |
---|---|
Stage #1: isopropyl alcohol With sodium azide; zinc(II) chloride at 20℃; Inert atmosphere; Stage #2: 3-isobutylglutaric anhydride at 75 - 80℃; Stage #3: With hydrogenchloride; sodium nitrite In water at -5 - 10℃; | 90% |
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
With hydroxylamine hydrochloride; sodium hydroxide In water; isopropyl alcohol at 60 - 65℃; for 4h; | 90% |
3-isobutylglutaric anhydride
3-hydrazinocarbonylmethyl-5-methyl-hexanoic acid
Conditions | Yield |
---|---|
With sodium hydroxide; hydrazine In water; toluene at -5 - 5℃; for 2 - 3h; Product distribution / selectivity; | 86% |
With sodium hydroxide; hydrazine In water; toluene at -5 - 5℃; for 2 - 3h; Product distribution / selectivity; | 86% |
With sodium hydroxide; hydrazine In water at -5 - 5℃; for 2 - 3h; Product distribution / selectivity; | |
With sodium hydroxide; hydrazine In water at -5 - 5℃; for 2 - 3h; Product distribution / selectivity; |
Conditions | Yield |
---|---|
With [2,2]bipyridinyl; bis(1,5-cyclooctadiene)nickel (0); zinc In N,N-dimethyl acetamide at 80℃; for 12h; | 83% |
Conditions | Yield |
---|---|
With [2,2]bipyridinyl; bis(1,5-cyclooctadiene)nickel (0); zinc In N,N-dimethyl acetamide at 80℃; for 12h; | 80% |
3-isobutylglutaric anhydride
(S)-1-phenyl-ethylamine
(3S)-5-methyl-3-(2-oxo-2-{[(1S)-1-phenylethyl]amino}ethyl)hexanoic acid
Conditions | Yield |
---|---|
With dmap In toluene at -15 - -10℃; Temperature; Concentration; | 73% |
3-isobutylglutaric anhydride
(2E)-3-phenyl-2-propen-1-ol
(-)-(R)-3-isobutyl-pentanedioic acid mono-(3-phenyl-allyl) ester
Conditions | Yield |
---|---|
With Quinine In toluene at -30℃; for 24h; | 72% |
3-isobutylglutaric anhydride
3-Phenylpropenol
(-)-(R)-3-isobutyl-pentanedioic acid mono-(3-phenyl-allyl) ester
Conditions | Yield |
---|---|
Stage #1: 3-isobutylglutaric anhydride; 3-Phenylpropenol With quinine In toluene at -35℃; for 24.25h; Stage #2: With 1-Adamantanamine In tert-butyl methyl ether; isopropyl alcohol at 25 - 45℃; for 6h; Stage #3: With hydrogenchloride In water; toluene Product distribution / selectivity; | 69% |
Stage #1: 3-isobutylglutaric anhydride; 3-Phenylpropenol With quinindine In di-isopropyl ether; water; toluene at -35℃; for 24.25h; Stage #2: With (S)-1-phenyl-ethylamine In di-isopropyl ether; water at 25 - 35℃; for 4h; Stage #3: With hydrogenchloride In water; toluene Product distribution / selectivity; | 66% |
3-isobutylglutaric anhydride
3-Phenylpropenol
Conditions | Yield |
---|---|
Stage #1: 3-isobutylglutaric anhydride; 3-Phenylpropenol With quinindine In toluene at -38 - -35℃; for 24.25h; Stage #2: With (S)-1-phenyl-ethylamine In di-isopropyl ether; water at 25 - 35℃; for 4h; Stage #3: With hydrogenchloride In water; toluene | 65% |
3-isobutylglutaric anhydride
phenylmagnesium chloride
Conditions | Yield |
---|---|
With (-)-sparteine In toluene at -78℃; for 24h; Grignard reaction; Title compound not separated from byproducts; |
3-isobutylglutaric anhydride
A
(S)-3-{[(2S-1,3,3,trimethylbicyclo[2.2.1]heptan-2-yloxy)carbonyl]methyl}-5-methylhexanoic aic
B
(R)-3-{[(2S-1,3,3,trimethylbicyclo[2.2.1]heptan-2-yloxy)carbonyl]methyl}-5-methylhexanoic aic
Conditions | Yield |
---|---|
Stage #1: (1S)-1,3,3-trimethyl-norbornan-2endo-ol With sodium hydride In toluene at 80℃; Stage #2: 3-isobutylglutaric anhydride In toluene at 0 - 20℃; for 3h; |
3-isobutylglutaric anhydride
A
(S)-4-(((S)-carboxy(phenyl)methoxy)carbonyl)-3-isobutylbutanoic acid
B
(R)-4-(((S)-carboxy(phenyl)methoxy)carbonyl)-3-isobutylbutanoic acid
Conditions | Yield |
---|---|
Stage #1: (S)-Mandelic acid With sodium hydride In toluene Heating / reflux; Stage #2: 3-isobutylglutaric anhydride In toluene at 20℃; for 6h; |
methanol
3-isobutylglutaric anhydride
(3R)‐3‐(carbamoylmethyl)‐5‐methylhexanoic acid
Conditions | Yield |
---|---|
Stage #1: methanol; 3-isobutylglutaric anhydride With quinidine at -50℃; for 17h; Stage #2: With ammonia In water at 20 - 40℃; for 72h; Stage #3: With hydrogenchloride In water pH=3; Product distribution / selectivity; |
3-isobutylglutaric anhydride
benzyl alcohol
Conditions | Yield |
---|---|
With Quinine In toluene at -25℃; for 23h; Title compound not separated from byproducts.; | |
With quinine In toluene at 20℃; for 20h; optical yield given as %ee; enantioselective reaction; | |
With xanthene-9-carboxylic acid; quinine In toluene at 20℃; for 20h; optical yield given as %ee; enantioselective reaction; | |
With xanthene-9-carboxylic acid; quinindine In toluene at 20℃; for 22h; Inert atmosphere; optical yield given as %ee; enantioselective reaction; | |
With xanthene-9-carboxylic acid; quinine In toluene at 20℃; for 18h; Inert atmosphere; optical yield given as %ee; enantioselective reaction; |
3-isobutylglutaric anhydride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: 72 percent / quinine / toluene / 24 h / -30 °C 2.1: triethylamine; diphenylphosphoryl azide / toluene / 20 - 90 °C 2.2: toluene / Heating View Scheme |
3-isobutylglutaric anhydride
(-)-(S)-3-(benzyloxycarbonylamino-methyl)-5-methyl-hexanoic acid 3-phenyl-allyl ester
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: 72 percent / quinine / toluene / 24 h / -30 °C 2.1: triethylamine; diphenylphosphoryl azide / toluene / 20 - 90 °C 2.2: toluene / Heating View Scheme |
3-isobutylglutaric anhydride
(-)-(S)-3-(benzyloxycarbonylamino-methyl)-5-methyl-hexanoic acid
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: 72 percent / quinine / toluene / 24 h / -30 °C 2.1: triethylamine; diphenylphosphoryl azide / toluene / 20 - 90 °C 2.2: toluene / Heating 3.1: 12.7 g / morpholine; triphenylphosphine / Pd(OAc)2 / ethanol / 3 h / Heating View Scheme | |
Multi-step reaction with 4 steps 1.1: N-((1R,2R)-2-(dimethylamino)-1-(4-nitrophenyl)-3-(trityloxy)propyl)-3,5-bis(trifluoromethyl)benzene-sulfonamide / tert-butyl methyl ether / -20 °C / Inert atmosphere; Schlenk technique 2.1: triethylamine; diphenyl phosphoryl azide / toluene / 20 - 90 °C / Inert atmosphere; Schlenk technique 3.1: toluene / Reflux; Inert atmosphere; Schlenk technique 4.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 3 h / 20 °C / Inert atmosphere; Schlenk technique 4.2: 0 °C / Inert atmosphere; Schlenk technique View Scheme | |
Multi-step reaction with 3 steps 1.1: (S)-2-(3-(3,5-bis(trifluoromethyl)phenyl)thioureido)-N,N,4-trimethyl-N-(4-nitrobenzyl)(pentan-1-ylammonium) chloride / tert-butyl methyl ether / 16 h / -10 °C / Inert atmosphere 2.1: triethylamine; diphenylphosphoranyl azide / toluene / 0.25 h / 25 - 85 °C 2.2: 12 h / Reflux 3.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 4 h / 20 °C View Scheme |
3-isobutylglutaric anhydride
(S)-4-isobutyl-pyrrolidin-2-one
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: 72 percent / quinine / toluene / 24 h / -30 °C 2.1: triethylamine; diphenylphosphoryl azide / toluene / 20 - 90 °C 2.2: toluene / Heating 3.1: morpholine; triphenylphosphine / Pd(OAc)2 / ethanol / 3 h / Heating View Scheme |
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