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6674-22-2

Basic Information
CAS No.: 6674-22-2
Name: 1,8-Diazabicyclo(5.4.0)undec-7-ene
Molecular Structure:
Molecular Structure of 6674-22-2 (1,8-Diazabicyclo(5.4.0)undec-7-ene)
Formula: C9H16N2
Molecular Weight: 152.24
Synonyms: 1,8-Diaza-7-bicyclo[5.4.0]undecene;1,8-Diazabicyclo[5.4.0]undecene-7;2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine;Alcanpoudre DBU 70-3KG;Amicure DBUE;DBU;Dabco DBU;NSC 111184;NSC 230466;Polycat DBU;U-CAT SA 851;
EINECS: 229-713-7
Density: 1.12 g/cm3
Melting Point: -70 °C
Boiling Point: 274.6 °C at 760 mmHg
Flash Point: 119.9 °C
Solubility: soluble in water
Appearance: Colorless to yellow liquid
Hazard Symbols: CorrosiveC
Risk Codes: 22-34-52/53-35
Safety: 26-36/37/39-45-61-27
Transport Information: UN 3267 8/PG 2
PSA: 15.60000
LogP: 1.03810
Synthetic route
107645-81-8

1-(2,3,4,6,7,8,9,10-Octahydro-pyrimido[1,2-a]azepin-10-yl)-1-phenyl-ethanol

A

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

B

98-86-2

acetophenone

Conditions
ConditionsYield
at 150℃; for 2h; Product distribution;A n/a
B 90%
107645-80-7

(2,3,4,6,7,8,9,10-Octahydro-pyrimido[1,2-a]azepin-10-yl)-diphenyl-methanol

A

119-61-9

benzophenone

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
at 180℃; for 2h; Product distribution;A 85%
B n/a
78204-84-9

1,8-diazabicyclo<5.4.0>undec-7-ene hidrochloride

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
With tri-n-propylamine; sodium methylate In methanol85%

1,8-diazabicyclo[5.4.0]undec-7-ene hydrochloride

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
With sodium hydroxide In water; toluene at 20℃; for 1h; Reagent/catalyst;78.8%
109-97-7

pyrrole

1309041-52-8

methyl 1,8-diazabicyclo[5.4.0]undec-6-ene-8-carboxylate

A

4277-63-8

methyl 1H-pyrrole-1-carboxylate

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In chloroform-d1 at 19.84℃; for 56h;A 78%
B n/a
107645-82-9

(2,3,4,6,7,8,9,10-Octahydro-pyrimido[1,2-a]azepin-10-yl)-phenyl-methanol

A

100-52-7

benzaldehyde

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
at 180℃; for 2h; Product distribution;A 32%
B n/a

(Z)-1-(2,3,4,6,7,8,9,10-Octahydro-pyrimido[1,2-a]azepin-10-yl)-2-phenyl-ethenol

108-93-0

cyclohexanol

A

42288-75-5

phenylacetic acid cyclohexyl ester

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In diethylene glycol dimethyl ether for 24h; Product distribution; Mechanism; Heating;A 14%
B n/a
67-56-1

methanol

(Z)-1-(2,3,4,6,7,8,9,10-Octahydro-pyrimido[1,2-a]azepin-10-yl)-2-phenyl-ethenol

A

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

B

101-41-7

benzeneacetic acid methyl ester

Conditions
ConditionsYield
for 65h; Product distribution; Mechanism; Heating;A n/a
B 6%

C9H16N2*C8H7N2O4(1-)*H(1+)

A

29342-38-9

1-nitro-1-(4-nitrophenyl)ethane

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In toluene at 20℃; Kinetics; Equilibrium constant; Thermodynamic data; other temperatures, other solvent, ΔH (excit.), ΔS(excit.);

C9H16N2*C7H4N3O6(1-)*H(1+)

A

118-96-7

2,4,6-Trinitrotoluene

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In acetonitrile at 25℃; Rate constant; different solvents;

C9H16(2)HN2(1+)*C7H2(2)H2N3O6(1-)

A

52886-05-2

2,4,6-trinitro(α,αα-D3)toluene

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In 1,2-dichloro-ethane at 25℃; Rate constant;

2,3,4,6,7,8,9,10-octahydro-1H-pyrimido[1,2-a]azepin-5-ylium; bromide

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
With amberlite IRA 400 (OH(-)) In methanol
674303-37-8

N-(3-azidopropyl)-ε-caprolactam

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: oxalyl bromide / 1,2-dichloro-ethane / 7 h / 0 - 25 °C
2: anisole; MeOH / 1,2-dichloro-ethane / 0.5 h / 25 °C
3: amberlite IRA 400 (OH(-)) / methanol
View Scheme

1-bromo-2,3,4,6,7,8,9,10-octahydro-1H-pyrimido[1,2-a]azepin-5-ylium; bromide

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: anisole; MeOH / 1,2-dichloro-ethane / 0.5 h / 25 °C
2: amberlite IRA 400 (OH(-)) / methanol
View Scheme
105-60-2

caprolactam

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: NaH / tetrahydrofuran / 0.5 h / 20 °C
1.2: tetrabutylammonium iodide / tetrahydrofuran / 20 °C
2.1: oxalyl bromide / 1,2-dichloro-ethane / 7 h / 0 - 25 °C
3.1: anisole; MeOH / 1,2-dichloro-ethane / 0.5 h / 25 °C
4.1: amberlite IRA 400 (OH(-)) / methanol
View Scheme

C25H26N2O2

A

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

B

5381-33-9

2-benzylidene-indan-1,3-dione

Conditions
ConditionsYield
In acetonitrile at 20℃; Equilibrium constant; Further Variations:; concentrations;

A

15795-54-7

5-(4-methoxybenzylidene)-2,2-dimethyl-[1,3]dioxane-4,6-dione

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In acetonitrile at 20℃; Equilibrium constant; Further Variations:; concentrations;

C23H30N4O4

A

57270-82-3

5-(4-methoxy-benzylidene)-1,3-dimethyl-pyrimidine-2,4,6-trione

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In acetonitrile at 20℃; Equilibrium constant; Further Variations:; concentrations;

C2F6NO4S2(1-)*C8H18NO3(1+)*C9H16N2

A

1003581-59-6

2-hydroxyethyl(dimethyl)isopropylammonium bis(trifluoromethylsulfonyl)imide

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
Inert atmosphere; Heating;

C2F6NO4S2(1-)*C7H11N2O3(1+)*C9H16N2

A

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

B

1-(2-hydroxyethyl)-3-methylimidazolium bis((trifluoromethane)sulfonyl)amide

Conditions
ConditionsYield
at 120℃; for 0.25h; Inert atmosphere;
67-56-1

methanol

1309041-52-8

methyl 1,8-diazabicyclo[5.4.0]undec-6-ene-8-carboxylate

A

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

B

616-38-6

carbonic acid dimethyl ester

Conditions
ConditionsYield
In chloroform-d1 at 19.84℃; for 16h; Inert atmosphere;A 100 %Spectr.
B 100 %Spectr.

4-methylbenzophenone-(1,8-diazabicyclo[5.4.0]undec-7-ene)ammonium tetraphenylborate

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In dimethyl sulfoxide Quantum yield; Irradiation;
109-97-7

pyrrole

1309041-53-9

phenyl 1,8-diazabicyclo[5.4.0]undec-6-ene-8-carboxylate

A

56880-01-4

1-phenoxycarbonyl pyrrole

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

[RuII(2,2':6',2''-terpyridine)(1-(2,2':6',2''-terpyridin-4'-yl)-3-phenylurea(-H))]+

227008-07-3, 857293-63-1

1,8-diazabicyclo[5.4.0]undec-7-ene cation

A

1429345-86-7

(4'-phenylurea-2,2':6',2''-terpyridine)(2,2':6',2''-terpyridine)ruthenium(II)

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In acetonitrile Equilibrium constant; Solvent;
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

74-88-4

methyl iodide

41315-96-2

8-Methyl-8-aza-1-azonia-bicyclo<5.4.0>undec-1(7)-en-jodid

Conditions
ConditionsYield
In dichloromethane at 20℃; for 12h;100%
In benzene9 g
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

762-42-5

dimethyl acetylenedicarboxylate

173069-03-9

methyl 2-oxo-4,8-diazatricyclo[6.4.1.04,13]tridec-Δ1,13-en-3-ylideneacetate

Conditions
ConditionsYield
In dichloromethane at -45 - 20℃;100%
In chloroform for 0.0333333h; Ambient temperature;96%
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

333-27-7

methyl trifluoromethanesulfonate

1-methyl-2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium trifluoromethanesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 0.666667h;100%
at 20℃; for 2h;95%
100-44-7

benzyl chloride

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1-benzyl-2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium chloride

Conditions
ConditionsYield
for 4h; Heating;100%
In ethyl acetate at 20℃; for 48h;
In chloroform at 20℃; for 2h;
In chloroform at 20℃; for 2h;
In ethyl acetate at 20℃; for 48h;
74-96-4

ethyl bromide

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1-ethyl-2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium bromide

Conditions
ConditionsYield
for 0.333333h; Heating;100%
In ethyl acetate for 48h;
In acetonitrile for 48h;
109-69-3

n-Butyl chloride

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1-butyl-2,3,4,6,7,8,9,10-octahydro-pyrimido[1,2-a]azepin-1-ium chloride

Conditions
ConditionsYield
for 5h; Heating;100%
In acetonitrile at 75℃; for 24h; Inert atmosphere;99%
at 50℃; for 24h; Inert atmosphere;87%
In acetonitrile for 96h; Reflux;56%
10199-34-5, 14056-88-3, 15604-36-1

cis-dichlorobis(triphenylphosphine)platinum(II)

{Me2Sn(disulphurdinitrido)}2

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

cis-Pt(disulphurdinitrido)(PPh3)2

Conditions
ConditionsYield
In not given byproducts: (CH3)2SnCl2; not isolated, identified by NMR spectroscopy;100%
19471-47-7, 15630-86-1, 21545-76-6

cis-dichlorobis(trimethylphosphine)platinum(II)

{Me2Sn(disulphurdinitrido)}2

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

104185-14-0

Pt(disulphurdinitrido)(PMe3)2

Conditions
ConditionsYield
In not given byproducts: (CH3)2SnCl2; not isolated, identified by NMR spectroscopy;100%
15393-14-3

cis-[bis(dimethylphenylphosphane)dichlroplatinum(II)]

{Me2Sn(disulphurdinitrido)}2

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

104185-15-1

cis-Pt(disulphurdinitido)(PMe2Ph)2

Conditions
ConditionsYield
In not given byproducts: (CH3)2SnCl2; not isolated, identified by NMR spectroscopy;100%
83095-83-4, 14647-25-7

[platinum(II)dichloride(1,2-bis(diphenylphosphino)ethane)]

{Me2Sn(disulphurdinitrido)}2

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

104185-17-3

(Pt(S2N2)(Ph2PCH2CH2PPh2))

Conditions
ConditionsYield
In not given byproducts: (CH3)2SnCl2; not isolated, identified by NMR spectroscopy;100%
16633-72-0, 53585-56-1, 60103-85-7

cis-dichlorobis(methyldiphenylphosphine)platinum(II)

{Me2Sn(disulphurdinitrido)}2

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

cis-Pt(disulphurdinitrido)(PMePh2)2

Conditions
ConditionsYield
In not given byproducts: (CH3)2SnCl2; not isolated, identified by NMR spectroscopy;100%
22288-78-4

Methyl 3-aminothiophene-2-carboxylate

994-28-5

triethylchlorogermane

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

A

135302-90-8

(C2H5)3GeNHC6H5O2S

B

78204-84-9

1,8-diazabicyclo<5.4.0>undec-7-ene hidrochloride

Conditions
ConditionsYield
In benzene inert atmosphere; addn. of DBU soln. to soln. of Et3GeCl and thiophene derivative, then 36 h, 20°C; filtration off of DBU.HCl, evapn. (reduced pressure), distn. (vac.); elem. anal.;A 59%
B 100%
22288-78-4

Methyl 3-aminothiophene-2-carboxylate

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1613-66-7

dichlorodiphenylgermane

A

135389-29-6

(C6H5)2ClGeNHC6H5O2S

B

78204-84-9

1,8-diazabicyclo<5.4.0>undec-7-ene hidrochloride

Conditions
ConditionsYield
In benzene inert atmosphere; addn. of DBU soln. to soln. of Ph2GeCl2 and thiophene derivative, then 36 h, 20°C; filtration off of DBU.HCl, evapn. (reduced pressure), distn. (vac.); elem. anal.;A 99%
B 100%
22288-78-4

Methyl 3-aminothiophene-2-carboxylate

96481-42-4

dichlorodimesitylgermane

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

A

144975-54-2, 135389-30-9

((CH3)3C6H2)2ClGeNHC6H5O2S

B

78204-84-9

1,8-diazabicyclo<5.4.0>undec-7-ene hidrochloride

Conditions
ConditionsYield
In benzene inert atmosphere; addn. of DBU soln. to soln. of Mes2GeCl2 and thiophene derivative, then 24 h, 20°C; filtration off of DBU.HCl, evapn. (reduced pressure);A 98%
B 100%

C23H30N2O5

A

15795-54-7

5-(4-methoxybenzylidene)-2,2-dimethyl-[1,3]dioxane-4,6-dione

B

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

Conditions
ConditionsYield
In acetonitrile at 20℃; Equilibrium constant; Further Variations:; concentrations;
15526-65-5, 20516-74-9

tricarbonylbis(triphenylphosphite)iron

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

415704-04-0

C9H17N2(1+)*Fe(CO)2(P(OC6H5)3)((C6H5O)2POC6H4)(1-)=[C9H17N2][Fe(CO)2(P(OC6H5)3)((C6H5O)2POC6H4)]

Conditions
ConditionsYield
In tetrahydrofuran Irradiation (UV/VIS); under N2; stirred soln. Fe(CO)3(P(OPh)3)3 in THF cooled; irradiated for 1-2 h (monitored by IR); C9H16N2 added; stirred for 2 min; not isolated;100%
64-19-7

acetic acid

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

36443-65-9

2,3,4,5,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium acetate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 6h;100%
at 60℃; for 18h; Schlenk technique;95%
at 5 - 20℃;
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

78204-84-9

1,8-diazabicyclo<5.4.0>undec-7-ene hidrochloride

Conditions
ConditionsYield
With ammonium chloride In methanol at 20℃; for 6h;100%
With hydrogenchloride In diethyl ether for 1h; Inert atmosphere;90%
With ammonium chloride In methanol
80522-42-5

triisopropylsilyl trifluoromethanesulfonate

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1211543-89-3

CF3O3S(1-)*C18H37N2Si(1+)

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 20℃; Inert atmosphere;100%
1493-13-6

trifluorormethanesulfonic acid

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1H-2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium trifluoromethanesulfonate

Conditions
ConditionsYield
In chloroform at 20℃;100%
In dichloromethane at 20℃; for 6h;92%
In methanol at 0℃; for 24h; Inert atmosphere;
In methanol at 60℃;
110682-72-9

tetra-15-crown-5-phthalocyanine

erbium(III) acetate dihydrate

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

[Er(tetra-15-crown-5-phthalocyaninate)(1,8-diazabicyclo[5.4.0]undec-7-ene)(acetato)]

Conditions
ConditionsYield
In 1,2-dichloro-benzene placing of tetra-15-crown-5-phthalocyanine (1 equiv.) and Er(OAc)3*2H2O (8 equiv.) in flask with reflux condenser, addn. of 1,2-dichlorobenzene and 1,8-diazabicyclo(5.4.0)undec-7-ene (40 equiv.), heating to 180.degr ee.C, reflux for 4.5 h; cooling, pptn. with hexane, filtration, washing with hexane, dissolving in CHCl3, pptn. with hexane, sonication in acetone for 30 min, addn. of hexane to the volume ratio acetone:hexane=1:1, cooling to -18°C, pptn., filtration, drying;100%
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

p-nitrobenzyl imidazole-N-carboxylate

1450985-90-6

(4-nitrophenyl)methyl 3-(2-oxoazepan-1-yl)propylcarbamate

Conditions
ConditionsYield
at 70℃; for 2h;100%
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepin-1-ium (D,L)-2-amino-3-(1H-indol-3-yl)propanoate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 20h;100%
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

613257-41-3

1,8-diazabicyclo[5.4.0]undec-7-ene hydrobromide

Conditions
ConditionsYield
With ammonium bromide In methanol at 20℃; for 6h;100%
With hydrogen bromide In water at 5 - 20℃; for 24h;99%
With hydrogen bromide In acetonitrile at 0 - 20℃; for 2h;
With hydrogen bromide for 6h;

S-methyl-S-(2-cyanoethyl) ethylphosphonodithioate

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

C3H9OPS2*C9H16N2

Conditions
ConditionsYield
In tetrahydrofuran at 20℃; for 1.5h;100%
85721-33-1

ciprofloxacin

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

C17H18FN3O3*C9H16N2

Conditions
ConditionsYield
In methanol; water at 20℃; for 2h;100%
25294-59-1

methyl 4-hydroxy-4-methyl-2-pentynoate

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

4-hydroxy-4-methyl-N-[3-(2-oxo-1-azepanyl)propyl]-2-pentynamide

Conditions
ConditionsYield
With water In acetonitrile at 20 - 25℃; for 48h; chemoselective reaction;100%
6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

93000-98-7

1,8-diazabicyclo[5.4.0]-7-undecene hydroiodide

Conditions
ConditionsYield
With ammonium iodide In methanol at 20℃; for 6h; Reagent/catalyst; Solvent;100%
With hydrogen iodide In 1,4-dioxane; water at 20℃; for 12h;98%
1633-83-6

1,4-butane sultone

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

1,8-bis(butanesulphonic acid)-diazobicyclo[5.4.0]undec-7-enium hydrogen sulfate

Conditions
ConditionsYield
Stage #1: 1,4-butane sultone; 1,8-diazabicyclo[5.4.0]undec-7-ene at 20℃; for 0.0833333h;
Stage #2: With sulfuric acid at 20℃;
100%
1633-83-6

1,4-butane sultone

64-19-7

acetic acid

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

C17H34N2O6S2(2+)*2C2H3O2(1-)

Conditions
ConditionsYield
Stage #1: 1,4-butane sultone; 1,8-diazabicyclo[5.4.0]undec-7-ene at 20℃; for 0.0833333h;
Stage #2: acetic acid at 20℃;
100%
1633-83-6

1,4-butane sultone

6674-22-2

1,8-diazabicyclo[5.4.0]undec-7-ene

76-05-1

trifluoroacetic acid

C17H34N2O6S2(2+)*2C2F3O2(1-)

Conditions
ConditionsYield
Stage #1: 1,4-butane sultone; 1,8-diazabicyclo[5.4.0]undec-7-ene at 20℃; for 0.0833333h;
Stage #2: trifluoroacetic acid at 20℃;
100%
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Chemistry

Molecular Structure:

Molecular Formula: C9H16N2
Molecular Weight: 152.2367
IUPAC Name: 2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine
Synonyms of  DBU: 1,5-Diazabicyclo(5.4.0)undec-5-ene ; 2,3,4,6,7,8,9,10-Octahydropyrimido(1,2-alpha)azepine ; DBU ; EINECS 229-713-7 ; NSC 111184 ; Pyrimido(1,2-a)azepine, 2,3,4,6,7,8,9,10-octahydro-
CAS NO: 6674-22-2
Product Categories: pharmacetical ; Pyridines ; Other Reagents ; Biochemistry ; Reagents for Oligosaccharide Synthesis ; Biochemics
Melting point: -70 °C 
Index of Refraction: 1.591
Molar Refractivity: 45.93 cm3
Molar Volume: 135.7 cm3
Surface Tension: 42.2 dyne/cm
Density: 1.12 g/cm3
Flash Point: 119.9 °C
Enthalpy of Vaporization: 51.3 kJ/mol
Boiling Point: 274.6 °C at 760 mmHg
Vapour Pressure: 0.00536 mmHg at 25 °C

Uses

 DBU (CAS NO.6674-22-2) is used in organic synthesis as a catalyst and complexing ligand and non-nucleophilic base.

Safety Profile

Hazard Codes of DBU (CAS NO.6674-22-2): CorrosiveC
Risk Statements: 22-34-52/53-35 
R22:Harmful if swallowed. 
R34: Causes burns. 
R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R35: Causes severe burns.
Safety Statements: 26-36/37/39-45-61-27 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets. 
S27: Take off immediately all contaminated clothing.
RIDADR:  UN 3267 8/PG 2
WGK Germany: 2
F: 34
HazardClass: 8
PackingGroup: II
HS Code: 29339930

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