COBALT(II) 2,3-NAPHTHALOCYANINE synthesis

Yield:26603-20-3 97.6%

Reaction Conditions:

with 1,8-diazabicyclo[5.4.0]undec-7-ene in hexan-1-ol; for 6 h;Reflux;

Steps:

6 Manufacturing of green pigment [A-2] for plastics

General procedure: 300 parts of 1-hexanol, 50.0 parts of 2,3-dicyanonaphthalene, 47.0 parts of 1,8-diazabicyclo [5.4.0] -7-undecene, and 6.9 parts of cuprous chloride (I) The parts were mixed and refluxed with heating and stirring for 6 hours. After completion of the reaction, the obtained dark green precipitate After filtration, the mixture was washed successively with methanol, N-methyl-2-pyrrolidone, and methanol again, and dried at 80 ° C. to obtain compound [a-2]. As a result of mass spectrometry by TOF-MS, it was identified as compound [a-2].

References:

JP2020/180180,2020,A Location in patent:Paragraph 0061; 0063; 0074