Name: VIOLANTHRONE-79
SKU: 85652-50-2

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Basic Information

CAS No.:

85652-50-2

Name:

VIOLANTHRONE-79

Molecular Structure:

Formula:

C50H48 O4

Molecular Weight:

712.929

Synonyms:

Violanthrone79

Density:

1.216±0.06 g/cm3 (20 ºC 760 Torr), Calc.*

Melting Point:

193-196 °C(lit.)

Safety:

WGK Germany

PSA:

52.60000

LogP:

13.63860

Synthetic route

: 85652-50-2
16,17-bis(octyloxy)-anthra[9,1,2-cde-]benzo[rst]pentaphene-5,10-dione

Conditions	Yield
With 18-crown-6 ether; potassium carbonate In 1-methyl-pyrrolidin-2-one at 100℃; for 8h; Williamson Ether Synthesis;	72%
Stage #1: 16,17-dihydroxyviolanthrene-5,10-dione With potassium carbonate In N,N-dimethyl-formamide at 120℃; Stage #2: 1-bromo-octane In N,N-dimethyl-formamide at 120 - 130℃; for 11h;	12.5%
With potassium carbonate In N,N-dimethyl-formamide at 100℃; for 12h;

: 85652-50-2
16,17-bis(octyloxy)-anthra[9,1,2-cde-]benzo[rst]pentaphene-5,10-dione

Conditions	Yield
Multi-step reaction with 2 steps 1.1: dichloromethane / 1 h / 20 °C 1.2: 16 h / 20 °C / Reflux; Cooling with ice 2.1: potassium carbonate; 18-crown-6 ether / 1-methyl-pyrrolidin-2-one / 8 h / 100 °C View Scheme