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930-88-1 Usage

Uses

N-Methylmaleimide is an electron deficient olefin that acts as a thiol-blocking reagent.

Purification Methods

Crystallise the imide three times from diethyl ether. Dry it in vacuo.[Beilstein 21/10 V 5.]

Check Digit Verification of cas no

The CAS Registry Mumber 930-88-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,3 and 0 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 930-88:
(5*9)+(4*3)+(3*0)+(2*8)+(1*8)=81
81 % 10 = 1
So 930-88-1 is a valid CAS Registry Number.
InChI:InChI=1/C5H5NO2/c1-6-4(7)2-3-5(6)8/h2-3H,1H3

930-88-1 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
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  • Alfa Aesar

  • (L00437)  N-Methylmaleimide, 98+%   

  • 930-88-1

  • 5g

  • 362.0CNY

  • Detail
  • Alfa Aesar

  • (L00437)  N-Methylmaleimide, 98+%   

  • 930-88-1

  • 25g

  • 1609.0CNY

  • Detail
  • Aldrich

  • (389412)  N-Methylmaleimide  97%

  • 930-88-1

  • 389412-5G

  • 693.81CNY

  • Detail
  • Aldrich

  • (389412)  N-Methylmaleimide  97%

  • 930-88-1

  • 389412-25G

  • 1,862.64CNY

  • Detail

930-88-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name N-Methylmaleimide

1.2 Other means of identification

Product number -
Other names 1H-Pyrrole-2,5-dione, 1-methyl-

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:930-88-1 SDS

930-88-1Synthetic route

maleic anhydride
108-31-6

maleic anhydride

methylamine
74-89-5

methylamine

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
With sulfuric acid; copper(II) sulfate; sodium sulfate In 5,5-dimethyl-1,3-cyclohexadiene at 140℃; for 2h;90%
Stage #1: maleic anhydride; methylamine In dichloromethane at 20℃; for 1h;
Stage #2: With sodium acetate; acetic anhydride at 90℃; for 16h;
Stage #1: maleic anhydride; methylamine In diethyl ether at 20℃; for 1.5h;
Stage #2: With sodium acetate; acetic anhydride Heating;
methylamine
74-89-5

methylamine

2-butenedioic acid
6915-18-0

2-butenedioic acid

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
With niobium(V) oxide In hexane; water for 30h; Inert atmosphere; Reflux;81%
maleic anhydride
108-31-6

maleic anhydride

methylamine hydrochloride
593-51-1

methylamine hydrochloride

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
With potassium acetate; acetic acid at 110℃; for 4h;30%
N-methylmaleamic acid
6936-48-7

N-methylmaleamic acid

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
at 160℃;
With sodium acetate; acetic anhydride for 1h; Heating; Yield given;
With sodium acetate; acetic anhydride at 90 - 100℃; for 0.5h;
2,5-Bis((trimethylsilyl)oxy)-N-methylpyrrole
91210-73-0

2,5-Bis((trimethylsilyl)oxy)-N-methylpyrrole

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
With tetrabutylammomium bromide; bromine In diethyl ether; dichloromethane at 0℃; Yield given;
acidic malate methylamine

acidic malate methylamine

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
at 200℃;
N-Methylpyrrole
96-54-8

N-Methylpyrrole

acetic acid
64-19-7

acetic acid

chromium (VI)-oxide

chromium (VI)-oxide

N-methylmaleimide
930-88-1

N-methylmaleimide

N-methylsuccinimide
1121-07-9

N-methylsuccinimide

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: Et3N / diethyl ether
2: n-Bu4NBr, Br2 / diethyl ether; CH2Cl2 / 0 °C
View Scheme
rhodamine B
81-88-9

rhodamine B

A

N-methylmaleimide
930-88-1

N-methylmaleimide

B

N-Ethylmaleimide
128-53-0

N-Ethylmaleimide

C

6-(ethylmethylamino)-3-hydroxyxanthylium

6-(ethylmethylamino)-3-hydroxyxanthylium

D

6-(diethylamino)-3-hydroxyxanthylium

6-(diethylamino)-3-hydroxyxanthylium

E

benzene-1,2-dicarboxylic acid
88-99-3

benzene-1,2-dicarboxylic acid

F

benzoic acid
65-85-0

benzoic acid

G

N,N-diethylaniline
91-66-7

N,N-diethylaniline

Conditions
ConditionsYield
With oxygen In water pH=2; Kinetics; pH-value; Irradiation; Green chemistry;
C5H7NO3

C5H7NO3

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
With sodium acetate; acetic anhydride at 110℃; for 4h;
With 1,1,1,3,3,3-hexamethyl-disilazane; zinc dibromide In tetrahydrofuran at 40 - 70℃; for 4.5h; Inert atmosphere;
With sodium acetate; acetic anhydride for 0.5h;
With sodium acetate In acetic anhydride at 120℃; for 0.5h; Microwave irradiation;
C12H13NO5

C12H13NO5

A

N-methylmaleimide
930-88-1

N-methylmaleimide

B

furfurylacetate
623-17-6

furfurylacetate

Conditions
ConditionsYield
In dichloromethane at 60℃; Equilibrium constant; Temperature;
2,4-dimethyl-3a,4,7,7a-tetrahydro-4,7-epioxido-isoindole-1,3-dione

2,4-dimethyl-3a,4,7,7a-tetrahydro-4,7-epioxido-isoindole-1,3-dione

A

2-methylfuran
534-22-5

2-methylfuran

B

N-methylmaleimide
930-88-1

N-methylmaleimide

Conditions
ConditionsYield
at 140℃;
N-methylmaleimide
930-88-1

N-methylmaleimide

Cyclohexanone oxime
100-64-1

Cyclohexanone oxime

2,2-spiropentamethylene-3-(2'-phenylsulphonylethyl)-7-methyl-3,7-diaza-4-oxabicyclo<3.3.0>octane-6,8-dione
135583-71-0

2,2-spiropentamethylene-3-(2'-phenylsulphonylethyl)-7-methyl-3,7-diaza-4-oxabicyclo<3.3.0>octane-6,8-dione

Conditions
ConditionsYield
In [D3]acetonitrile for 720h; Ambient temperature;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

10-diazo-10H-anthracen-9-one
1705-82-4

10-diazo-10H-anthracen-9-one

4-Hydroxy-2-methyl-3a,4,9,9a-tetrahydro-4,9<1',2'>benzeno-1H-benzisoindole-1,3(2H)-dione
118494-66-9

4-Hydroxy-2-methyl-3a,4,9,9a-tetrahydro-4,9<1',2'>benzeno-1H-benzisoindole-1,3(2H)-dione

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In pyridine100%
N-methylmaleimide
930-88-1

N-methylmaleimide

anthracen-9(10H)-one
90-44-8

anthracen-9(10H)-one

4-Hydroxy-2-methyl-3a,4,9,9a-tetrahydro-4,9<1',2'>benzeno-1H-benzisoindole-1,3(2H)-dione
118494-66-9

4-Hydroxy-2-methyl-3a,4,9,9a-tetrahydro-4,9<1',2'>benzeno-1H-benzisoindole-1,3(2H)-dione

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran for 0.25h; Ambient temperature; other anthrones, other dienophiles;100%
In N,N-dimethyl-formamide at 25℃; Product distribution; other related phenols, hydroquinones, and naphthacene analogues, other dienophiles, var. solvents and temperatures; solvent-dependent diene reactivity, base-catalyzed Diels-Alder reaction;100%
With triethylamine In tetrahydrofuran at 24℃; for 0.25h;100%
dihydroquinidine 9-O-(4-chlorobenzoate) In chloroform
N-methylmaleimide
930-88-1

N-methylmaleimide

10-imino-9(10H)-anthracenone
4392-73-8

10-imino-9(10H)-anthracenone

4-Amino-4,9<1',2'>-benzeno-3a,4,9,9a-tetrahydro-9-hydroxy-2-methyl-1H-benzisoindole-1,3(2H)-dione
118494-71-6, 132206-06-5

4-Amino-4,9<1',2'>-benzeno-3a,4,9,9a-tetrahydro-9-hydroxy-2-methyl-1H-benzisoindole-1,3(2H)-dione

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In pyridine for 2h;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

N-<(trimethylsilyl)methyl>benzaldimine
57402-97-8

N-<(trimethylsilyl)methyl>benzaldimine

2-Methyl-4-phenyl-tetrahydro-pyrrolo[3,4-c]pyrrole-1,3-dione

2-Methyl-4-phenyl-tetrahydro-pyrrolo[3,4-c]pyrrole-1,3-dione

Conditions
ConditionsYield
With water; acetic acid In N,N,N,N,N,N-hexamethylphosphoric triamide for 24h; Ambient temperature;100%
With N,N,N,N,N,N-hexamethylphosphoric triamide; water; acetic acid100%
N-methylmaleimide
930-88-1

N-methylmaleimide

N,N-bis(benzotriazol-1-ylmethyl)hydroxylamine
28539-14-2

N,N-bis(benzotriazol-1-ylmethyl)hydroxylamine

A

3-(2H-benzotriazol-2-yl)-1-methylpyrrolidine-2,5-dione

3-(2H-benzotriazol-2-yl)-1-methylpyrrolidine-2,5-dione

B

N-methyl-3-benzotriazol-1-ylsuccinimide
132287-03-7

N-methyl-3-benzotriazol-1-ylsuccinimide

cis-2-(benzotriazol-1-ylmethyl)-5-methyl-2,3,3a,6a-tetrahydropyrrolo<3,4-d>isoxazole-4,6-dione
132286-97-6

cis-2-(benzotriazol-1-ylmethyl)-5-methyl-2,3,3a,6a-tetrahydropyrrolo<3,4-d>isoxazole-4,6-dione

Conditions
ConditionsYield
In toluene for 24h; Heating; Title compound not separated from byproducts;A n/a
B n/a
C 100%
In toluene for 24h; Heating;A n/a
B n/a
C 100%
N-methylmaleimide
930-88-1

N-methylmaleimide

N-phenacylpyridinium bromide
16883-69-5

N-phenacylpyridinium bromide

(3aS,4S,9aR,9bR)-4-Benzoyl-2-methyl-3a,4,9a,9b-tetrahydro-pyrrolo[3,4-a]indolizine-1,3-dione
88089-38-7

(3aS,4S,9aR,9bR)-4-Benzoyl-2-methyl-3a,4,9a,9b-tetrahydro-pyrrolo[3,4-a]indolizine-1,3-dione

Conditions
ConditionsYield
With triethylamine In chloroform for 0.166667h; Ambient temperature;100%
With triethylamine In dimethyl sulfoxide at 20℃; for 0.0833333h;n/a
N-methylmaleimide
930-88-1

N-methylmaleimide

1-(2-(furan-2-yl)-2-oxoethyl)pyridinium bromide
946-07-6

1-(2-(furan-2-yl)-2-oxoethyl)pyridinium bromide

(3aS,4S,9aR,9bR)-4-(Furan-2-carbonyl)-2-methyl-3a,4,9a,9b-tetrahydro-pyrrolo[3,4-a]indolizine-1,3-dione
88089-36-5

(3aS,4S,9aR,9bR)-4-(Furan-2-carbonyl)-2-methyl-3a,4,9a,9b-tetrahydro-pyrrolo[3,4-a]indolizine-1,3-dione

Conditions
ConditionsYield
With triethylamine In chloroform for 0.166667h; Mechanism; Ambient temperature; other compounds;100%
With triethylamine In chloroform for 0.166667h; Ambient temperature;100%
With triethylamine In dichloromethane for 0.166667h; Ambient temperature;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

1-pyridinium-bromid
76212-02-7

1-pyridinium-bromid

(3aR,9aS,9bS)-2-Methyl-1,3-dioxo-1,2,3,3a,9a,9b-hexahydro-pyrrolo[3,4-a]indolizine-4,4-dicarboxylic acid diethyl ester
88089-42-3

(3aR,9aS,9bS)-2-Methyl-1,3-dioxo-1,2,3,3a,9a,9b-hexahydro-pyrrolo[3,4-a]indolizine-4,4-dicarboxylic acid diethyl ester

Conditions
ConditionsYield
With triethylamine In chloroform for 4h; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

α-(benzylideneamino)acetonitrile
34039-84-4

α-(benzylideneamino)acetonitrile

(1R,3R,3aS,6aR)-5-Methyl-4,6-dioxo-3-phenyl-octahydro-pyrrolo[3,4-c]pyrrole-1-carbonitrile
102845-50-1, 103530-39-8

(1R,3R,3aS,6aR)-5-Methyl-4,6-dioxo-3-phenyl-octahydro-pyrrolo[3,4-c]pyrrole-1-carbonitrile

Conditions
ConditionsYield
In toluene for 6.5h; Product distribution; Mechanism; Heating; reactions with var. olefinic dipolarrophiles;100%
In toluene for 6.5h; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

2-Methyl-4,5,6,7-tetramethyl-2H-isoindolen
126134-14-3

2-Methyl-4,5,6,7-tetramethyl-2H-isoindolen

endo-1,2,3,4-Tetrahydro-5,6,7,8,9,N'-hexamethyl-1,4-iminonaphthalin-2,3-dicarboximid
137003-84-0

endo-1,2,3,4-Tetrahydro-5,6,7,8,9,N'-hexamethyl-1,4-iminonaphthalin-2,3-dicarboximid

Conditions
ConditionsYield
In diethyl ether for 2h; Product distribution; Ambient temperature; with N-4-methylphenyl-maleinimde; 2-tert-butyl-4,5,6,7-tetramethyl-2H-isoindolene;100%
In diethyl ether for 2h; Ambient temperature;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

pyridinium benzoylmethylide
36377-40-9

pyridinium benzoylmethylide

(3aS,4S,9aR,9bR)-4-Benzoyl-2-methyl-3a,4,9a,9b-tetrahydro-pyrrolo[3,4-a]indolizine-1,3-dione
88089-38-7

(3aS,4S,9aR,9bR)-4-Benzoyl-2-methyl-3a,4,9a,9b-tetrahydro-pyrrolo[3,4-a]indolizine-1,3-dione

Conditions
ConditionsYield
In chloroform for 0.166667h; Ambient temperature;100%
Yield given;
N-methylmaleimide
930-88-1

N-methylmaleimide

benzaldehyde
100-52-7

benzaldehyde

methoxycarbonylmethylamine
616-34-2

methoxycarbonylmethylamine

(1RS,3SR,3aRS,6aSR)-methyl 5-methyl-4,6-dioxo-3-phenyloctahydropyrrolo[3,4-c]pyrrole-1-carboxylate
111098-98-7, 111187-10-1, 113349-48-7

(1RS,3SR,3aRS,6aSR)-methyl 5-methyl-4,6-dioxo-3-phenyloctahydropyrrolo[3,4-c]pyrrole-1-carboxylate

Conditions
ConditionsYield
In toluene for 24h; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

1-Acetoxy-1,4-dihydro-8-methoxy-1,4-epoxynaphthalene
93969-61-0

1-Acetoxy-1,4-dihydro-8-methoxy-1,4-epoxynaphthalene

(3aα,4β,9α,9aα)-4-acetoxy-5-methoxy-2-methyl-3a,4,9,9a-tetrahydro-4,9-epoxy-1H-benzisoindole-1,3(2H)-dione
93969-67-6

(3aα,4β,9α,9aα)-4-acetoxy-5-methoxy-2-methyl-3a,4,9,9a-tetrahydro-4,9-epoxy-1H-benzisoindole-1,3(2H)-dione

Conditions
ConditionsYield
With 3,6-di(2'-pyridyl)-1,2,4,5-tetrazine In chloroform at 60℃; for 0.5h;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

1-(1-methylene-2-propenyl)-Cyclopentanol
78158-11-9

1-(1-methylene-2-propenyl)-Cyclopentanol

5-(1-Hydroxy-cyclopentyl)-2-methyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione
91790-82-8

5-(1-Hydroxy-cyclopentyl)-2-methyl-3a,4,7,7a-tetrahydro-isoindole-1,3-dione

Conditions
ConditionsYield
In toluene for 20h; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

((1R,2R,3R,10bR)-2,3-Dibenzoyl-1,2,3,10b-tetrahydro-pyrrolo[2,1-a]isoquinolin-1-yl)-phenyl-methanone
97204-09-6, 105017-19-4

((1R,2R,3R,10bR)-2,3-Dibenzoyl-1,2,3,10b-tetrahydro-pyrrolo[2,1-a]isoquinolin-1-yl)-phenyl-methanone

8-benzoyl-10-methyl-11a,11b-dihydro-8H-pyrrolo[3',4':3,4]pyrrolo[2,1-a]isoquinoline-9,11(8aH,10H)-dione
97204-10-9

8-benzoyl-10-methyl-11a,11b-dihydro-8H-pyrrolo[3',4':3,4]pyrrolo[2,1-a]isoquinoline-9,11(8aH,10H)-dione

B

1,4-diphenylbut-2-ene-1,4-dione
959-28-4

1,4-diphenylbut-2-ene-1,4-dione

Conditions
ConditionsYield
In dimethylsulfoxide-d6 at 50 - 60℃; for 24h;A 100%
B n/a
N-methylmaleimide
930-88-1

N-methylmaleimide

N-(2-furoylmethyl)thiazolium bromide
88089-46-7

N-(2-furoylmethyl)thiazolium bromide

(5S,5aS,8aS,8bR)-5-(Furan-2-carbonyl)-7-methyl-5,5a,8a,8b-tetrahydro-pyrrolo[3',4':3,4]pyrrolo[2,1-b]thiazole-6,8-dione
88089-44-5

(5S,5aS,8aS,8bR)-5-(Furan-2-carbonyl)-7-methyl-5,5a,8a,8b-tetrahydro-pyrrolo[3',4':3,4]pyrrolo[2,1-b]thiazole-6,8-dione

Conditions
ConditionsYield
With triethylamine In chloroform for 0.166667h; Ambient temperature;100%
With triethylamine In dimethyl sulfoxide for 0.166667h; Ambient temperature;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

phenylglyoxal hydrate
1074-12-0

phenylglyoxal hydrate

methoxycarbonylmethylamine
616-34-2

methoxycarbonylmethylamine

methyl (1S*,3R*,3aS*,6aR*)-3-benzoyl-5-methyl-4,6-dioxooctahydropyrrolo[3,4-c]pyrrole-1-carboxylate
111120-70-8

methyl (1S*,3R*,3aS*,6aR*)-3-benzoyl-5-methyl-4,6-dioxooctahydropyrrolo[3,4-c]pyrrole-1-carboxylate

Conditions
ConditionsYield
In chloroform for 16h; Heating;100%
In chloroform for 16h; Heating; Yield given;
N-methylmaleimide
930-88-1

N-methylmaleimide

N-methylsuccinimide
1121-07-9

N-methylsuccinimide

Conditions
ConditionsYield
With acetic anhydride; zinc In toluene at 40 - 86℃; for 48h; Inert atmosphere; chemoselective reaction;100%
With Aeroxide (Evonik) P25 TiO2, consisting of a 3:1 anatase/rutile mixture In methanol; acetonitrile for 17h; Inert atmosphere; UV-irradiation;90%
With dichloro(dimethylglyoxime)(dimethylglyoximato)cobalt(III); ethyl 3-([1,1'-biphenyl]-2-yl)-3-oxopropanoate; 9-(2-mesityl)-10-methylacridinium perchlorate In acetonitrile at 20℃; for 24h; Irradiation; Inert atmosphere;86%
N-methylmaleimide
930-88-1

N-methylmaleimide

2,5-dimethyl-tetrahydro-cyclobuta[1,2-c;3,4-c']dipyrrole-1,3,4,6-tetraone
35946-59-9

2,5-dimethyl-tetrahydro-cyclobuta[1,2-c;3,4-c']dipyrrole-1,3,4,6-tetraone

Conditions
ConditionsYield
In acetonitrile for 9h; UV-irradiation;100%
In tetrachloromethane Product distribution; Quantum yield; Ambient temperature; Irradiation; Effect of concentration on quantum yield is studied;95%
In 1,1,2-Trichloro-1,2,2-trifluoroethane Product distribution; Quantum yield; Ambient temperature; Irradiation;95%
N-methylmaleimide
930-88-1

N-methylmaleimide

(E)-2-(benzylideneamino)acetonitrile
107554-38-1

(E)-2-(benzylideneamino)acetonitrile

(1S,3S,3aS,6aR)-5-Methyl-4,6-dioxo-3-phenyl-octahydro-pyrrolo[3,4-c]pyrrole-1-carbonitrile

(1S,3S,3aS,6aR)-5-Methyl-4,6-dioxo-3-phenyl-octahydro-pyrrolo[3,4-c]pyrrole-1-carbonitrile

Conditions
ConditionsYield
In toluene for 6.5h; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

ethyl 3-[1-[(1-methylethyl)amino]ethyl]-1H-indole-2-acetate

ethyl 3-[1-[(1-methylethyl)amino]ethyl]-1H-indole-2-acetate

(3aS,4S,10R,10aS)-2,10-Dimethyl-1,3-dioxo-1,2,3,3a,4,5,10,10a-octahydro-pyrrolo[3,4-b]carbazole-4-carboxylic acid ethyl ester

(3aS,4S,10R,10aS)-2,10-Dimethyl-1,3-dioxo-1,2,3,3a,4,5,10,10a-octahydro-pyrrolo[3,4-b]carbazole-4-carboxylic acid ethyl ester

Conditions
ConditionsYield
In toluene Addition; elimination; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

2-(thiobenzoylmethyl)-1,3-butadiene
428855-45-2

2-(thiobenzoylmethyl)-1,3-butadiene

thiobenzoic acid S-[1-(2-methyl-1,3-dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-5-yl)-ethyl] ester

thiobenzoic acid S-[1-(2-methyl-1,3-dioxo-2,3,3a,4,7,7a-hexahydro-1H-isoindol-5-yl)-ethyl] ester

Conditions
ConditionsYield
In benzene for 30h; Heating;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

3,4-Di-tert-butylthiophene S-oxide
118888-09-8

3,4-Di-tert-butylthiophene S-oxide

(1R,2R,6S,7S)-8,9-Di-tert-butyl-4-methyl-10-oxo-10λ4-thia-4-aza-tricyclo[5.2.1.02,6]dec-8-ene-3,5-dione

(1R,2R,6S,7S)-8,9-Di-tert-butyl-4-methyl-10-oxo-10λ4-thia-4-aza-tricyclo[5.2.1.02,6]dec-8-ene-3,5-dione

Conditions
ConditionsYield
In dichloromethane at 20℃; for 0.5h; Diels-Alder reaction;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

(E)-1-(4-ethoxypenta-2,4-dienyl)toluene
609771-80-4

(E)-1-(4-ethoxypenta-2,4-dienyl)toluene

(3aR,7aS)-6-Ethoxy-2-methyl-4-(2-methyl-benzyl)-3a,4,7,7a-tetrahydro-isoindole-1,3-dione

(3aR,7aS)-6-Ethoxy-2-methyl-4-(2-methyl-benzyl)-3a,4,7,7a-tetrahydro-isoindole-1,3-dione

Conditions
ConditionsYield
Diels-Alder reaction;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

C32H24F6N2O6
380377-18-4

C32H24F6N2O6

C37H29F6N3O8

C37H29F6N3O8

Conditions
ConditionsYield
for 0.0333333h; Diels-Alder reaction;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

(2-aminoethanethiolato-N,S)bis(1,2-diaminoethane)cobalt(III) perchlorate

(2-aminoethanethiolato-N,S)bis(1,2-diaminoethane)cobalt(III) perchlorate

[(en)2Co(S(CHCON(CH3)COCH2)CH2CH2NH2)](ClO4)3

[(en)2Co(S(CHCON(CH3)COCH2)CH2CH2NH2)](ClO4)3

Conditions
ConditionsYield
With H(1+) In perchloric acid aq. HClO4; to the soln. of Co-compd. in aq. HClO4 was added an org. compd.; after 1-2 h the soln. was dild. with H2O; the react. mixt. was absorbed onto an ion-exchange column; washing with aq. HClO4, elution with NaClO4 (pH 2);; Ba(NO3)2 and K2SO4 were added; KClO4 and BaSO4 were removed by fitration; the soln. was condensed by rotoevapn. at 30°C and was filtered; addn. of HClO4, standing overnight at 8°C; recrystn. from HClO4, cooling for 4 h at the same temp.;;100%
N-methylmaleimide
930-88-1

N-methylmaleimide

N-benzyl-N-(methoxymethyl)-N-[(trimethylsilyl)methyl]amine
93102-05-7

N-benzyl-N-(methoxymethyl)-N-[(trimethylsilyl)methyl]amine

5-benzyl-2-methyl-tetrahydropyrrolo[3,4-c]pyrrole-1,3-dione

5-benzyl-2-methyl-tetrahydropyrrolo[3,4-c]pyrrole-1,3-dione

Conditions
ConditionsYield
Stage #1: N-methylmaleimide With trifluoroacetic acid In dichloromethane at 0℃;
Stage #2: N-benzyl-N-(methoxymethyl)-N-[(trimethylsilyl)methyl]amine In dichloromethane at 5℃; for 24h;
100%
N-methylmaleimide
930-88-1

N-methylmaleimide

N-methyl bromomaleimide
65060-93-7

N-methyl bromomaleimide

Conditions
ConditionsYield
Stage #1: N-methylmaleimide With bromine In diethyl ether for 1h; Reflux;
Stage #2: With triethylamine In diethyl ether at 0 - 18℃;
100%
Stage #1: N-methylmaleimide With bromine In methanol at 20℃;
Stage #2: With triethylamine In tetrahydrofuran at 20℃; for 24h;
89%
Stage #1: N-methylmaleimide With bromine In methanol at 20℃; for 24h;
Stage #2: With triethylamine In tetrahydrofuran at 20℃; for 24h; Time;
89%
N-methylmaleimide
930-88-1

N-methylmaleimide

2,3-dimethyl-N-(quinolin-8-yl)benzamide

2,3-dimethyl-N-(quinolin-8-yl)benzamide

2,3-dimethyl-6-(1-methyl-2,5-dioxopyrrolidin-3-yl)-N-(quinolin-8-yl)benzamide

2,3-dimethyl-6-(1-methyl-2,5-dioxopyrrolidin-3-yl)-N-(quinolin-8-yl)benzamide

Conditions
ConditionsYield
With di-μ-acetato-bis(η4-1,5-cyclooctadiene)dirhodium(I) In toluene at 160℃; for 12h; regioselective reaction;100%

930-88-1Downstream Products

930-88-1Relevant articles and documents

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Lightner,D.A. et al.

, p. 802 - 807 (1976)

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Regioselective hydroarylation and arylation of maleimides with indazoles: Via a Rh(iii)-catalyzed C-H activation

Ghosh, Asim Kumar,Samanta, Sadhanendu,Ghosh, Payel,Neogi, Sukanya,Hajra, Alakananda

supporting information, p. 3093 - 3097 (2020/05/08)

Switchable Rh(iii)-catalyzed highly regioselective hydroarylation and oxidative arylation of maleimides with 2-arylindazoles via C-H activation have been demonstrated. The reaction affords 3-(2-(2H-indazol-2-yl)phenyl)succinimide and 3-(2-(2H-indazol-2-yl)phenyl)maleimide derivatives in high yields with wide functional group tolerance. A mechanistic study was performed to depict C-H bond cleavage that might be involved in the turnover limiting step.

The discovery, design and synthesis of potent agonists of adenylyl cyclase type 2 by virtual screening combining biological evaluation

Li, Shanshan,Song, Gao,Wang, Liang-Liang,Weng, Zhiying,Xu, Guowei,Yang, Weimin,Yang, Yanming,Yang, Yaqing,Zhang, Jiajun,Zuo, Zhili

supporting information, (2020/02/27)

Adenylate cyclases (ACs), play a critical role in the conversion of adenosine triphosphate (ATP) into the second messenger cyclic adenosine monophosphate (cAMP). Studies have indicated that adenylyl cyclase type 2 (AC2) is potential drug target for many diseases, however, up to now, there is no AC2-selective agonist reported. In this research, docking-based virtual screening with the combination of cell-based biological assays have been performed for discovering novel potent and selective AC2 agonists. Virtual screening disclosed a novel hit compound 8 as an AC2 agonist with EC50 value of 8.10 μM on recombinant human hAC2 + HEK293 cells. The SAR (structure activity relationship) based on the derivatives of compound 8 was further explored on recombinant AC2 cells and compound 73 was found to be the most active agonist with the EC50 of 90 nM, which is 160-fold more potent than the reported agonist Forskolin and could selectively activate AC2 to inhibit the expression of Interleukin-6. The discovery of a new class of AC2-selective agonists would provide a novel chemical probe to study the physiological function of AC2.

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