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1,7-Heptanediol

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Name

1,7-Heptanediol

EINECS 211-085-0
CAS No. 629-30-1 Density 0.951 g/cm3
PSA 40.46000 LogP 0.92150
Solubility Soluble in water, slightly soluble in ether. Melting Point 17-19 °C(lit.)
Formula C7H16O2 Boiling Point 262 °C at 760 mmHg
Molecular Weight 132.203 Flash Point 120.9 °C
Transport Information N/A Appearance yellowish liquid
Safety 24/25 Risk Codes N/A
Molecular Structure Molecular Structure of 629-30-1 (1,7-Heptanediol) Hazard Symbols N/A
Synonyms

1,7-Dihydroxyheptane;NSC 3821;a,w-Heptanediol;w-Heptanediol;

Article Data 230

1,7-Heptanediol Synthetic route

[4-((7-hydroxy-heptoxy)-diphenyl-methyl)phenoxy]-poly(styrene-co-divinylbenzene), copolymer 99:1, trityl loading: 1.47 mmol/g

[4-((7-hydroxy-heptoxy)-diphenyl-methyl)phenoxy]-poly(styrene-co-divinylbenzene), copolymer 99:1, trityl loading: 1.47 mmol/g

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane at 20℃; for 0.5h;100%
766-77-8

Dimethylphenylsilane

81036-11-5

7-(2-tetrahydro-2H-pyranyloxy)heptan-1-ol

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With aluminum (III) chloride In dichloromethane at 0℃; chemoselective reaction;100%
81036-11-5

7-(2-tetrahydro-2H-pyranyloxy)heptan-1-ol

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With acide phosphorique at 180 - 200℃;98.6%
2050-20-6

diethyl pimelate

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With sodium bis(2-methoxyethoxy)aluminium dihydride In 2-methyltetrahydrofuran at 45℃; for 5h; Inert atmosphere;98%
With samarium diiodide; water; triethylamine In tetrahydrofuran at 20℃; for 20h; Inert atmosphere;87%
With ethanol; sodium
1732-08-7

dimethyl 1,7-heptanedioate

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran at 5 - 20℃; for 2.5h; Large scale;95.3%
With ethanol; sodium
With sodium; butan-1-ol
With lithium aluminium tetrahydride; diethyl ether

acetic acid 7-(4-methoxy-benzyloxy)-heptyl ester

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With carbon tetrabromide In methanol for 3h; Deacetylation; ether cleavage; Heating;74%
1192601-85-6

7-hydroxyheptyl phenyl telluride

A

629-30-1

1,7-heptandiol

B

4117-10-6

6-hepten-1-ol

C

22054-13-3

7-hydroxyheptanal

Conditions
ConditionsYield
With oxygen In hexane for 0.0333333h; UV-irradiation;A 16 %Chromat.
B 6 %Chromat.
C 72%
6485-79-6

chlorotriisopropylsilane

81036-11-5

7-(2-tetrahydro-2H-pyranyloxy)heptan-1-ol

A

629-30-1

1,7-heptandiol

B

859509-85-6

7-((triisopropylsilyl)oxy)heptan-1-ol

Conditions
ConditionsYield
With aluminum (III) chloride In toluene at 0℃; chemoselective reaction;A n/a
B 58%
50-00-0

formaldehyd

111-24-0

1,5-dibromo-pentane

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
Stage #1: 1,5-dibromo-pentane With magnesium In tetrahydrofuran at 200℃; for 2h; Inert atmosphere;
Stage #2: formaldehyd In tetrahydrofuran for 12h;
50%
111-16-0

heptanedioic acid

629-30-1

1,7-heptandiol

Conditions
ConditionsYield
With potassium hydroxide; samarium diiodide In tetrahydrofuran; water for 0.01h; Ambient temperature;25%
With lithium aluminium tetrahydride; diethyl ether
With copper-aluminium-zinc catalyst at 280℃; under 147102 Torr; Hydrogenation;
Multi-step reaction with 2 steps
1: concentrated sulfuric acid
2: sodium; alcohol
View Scheme
Multi-step reaction with 2 steps
1: toluene-4-sulfonic acid / 7 h / Reflux; Large scale
2: lithium aluminium tetrahydride / tetrahydrofuran / 2.5 h / 5 - 20 °C / Large scale
View Scheme

1,7-Heptanediol Specification

The 1,7-Heptanediol, also known as 1,7-Dihydroxyheptane, is an organic compound with the formula C7H16O2. It belongs to the product categories of alpha,omega-Alkanediols; alpha,omega-Bifunctional Alkanes; Monofunctional & alpha,omega-Bifunctional Alkanes; Linear Hydrocarbon Series; Intermediates. Its EINECS registry number is 211-085-0. With the CAS registry number 629-30-1, its IUPAC name is heptane-1,7-diol. When you are using this chemical, please be cautious about it. You must avoid contact with skin and eyes. What's more, it should be protected from the oxidant, reducing agent, acidic chloride, anhydride and chlorine formic acid ester.

Physical properties of 1,7-Heptanediol: (1)ACD/LogP: 0.46; (2)ACD/LogD (pH 5.5): 0.46; (3)ACD/LogD (pH 7.4): 0.46; (4)ACD/BCF (pH 5.5): 1.33; (5)ACD/BCF (pH 7.4): 1.33; (6)ACD/KOC (pH 5.5): 42.58; (7)ACD/KOC (pH 7.4): 42.58; (8)#H bond acceptors: 2; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 8; (11)Index of Refraction: 1.452; (12)Molar Refractivity: 37.54 cm3; (13)Molar Volume: 139 cm3; (14)Surface Tension: 37.4 dyne/cm; (15)Density: 0.95 g/cm3; (16)Flash Point: 120.9 °C; (17)Enthalpy of Vaporization: 58.04 kJ/mol; (18)Boiling Point: 262 °C at 760 mmHg; (19)Vapour Pressure: 0.00159 mmHg at 25°C.

Preparation of 1,7-Heptanediol: this chemical can be prepared by 7-tetrahydropyranyloxy-heptan-1-ol. This reaction will need reagent acide phosphorique. The reaction occurs at 180 - 200 °C. The yield is about 98.6%.

1,7-Heptanediol can be prepared by 7-tetrahydropyranyloxy-heptan-1-ol

Uses of 1,7-Heptanediol: it can be used to produce 7-chloro-heptan-1-ol at 95 °C. This reaction will need reagent concentrated HCl.

1,7-Heptanediol can be used to produce 7-chloro-heptan-1-ol at 95 °C

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C(CCCO)CCCO
(2)InChI: InChI=1S/C7H16O2/c8-6-4-2-1-3-5-7-9/h8-9H,1-7H2
(3)InChIKey: SXCBDZAEHILGLM-UHFFFAOYSA-N

The toxicity data is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD intraperitoneal > 500mg/kg (500mg/kg)   "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 6, Pg. 147, 1954.

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