The Upstream and Downstream products of 3,6-Diiodopyridazine

In the chemical industry, the production of chemical compounds often involves a series of chemical reactions that result in the creation of various intermediate and final products.
One such compound that undergoes this process is 3,6-diiodopyridazine, a yellow to orange crystalline solid with a distinctive odor.

Upstream Products

The production of 3,6-diiodopyridazine typically involves several upstream products, which are raw materials or intermediate compounds used in the production process.
One of the key upstream products is iodine, which is used in the formation of the diiodopyridazine skeleton.
Picolinic acid and 2-chloro-4-iodopyridine are also upstream products that are used in the synthesis of 3,6-diiodopyridazine.

Picolinic acid, a white powder with a slightly acidic odor, is a key intermediate in the production of 3,6-diiodopyridazine.
It is used in the first step of the synthesis, which involves the reaction of picolinic acid with sodium hydroxide to form sodium picolinate.
This reaction creates a suspension of sodium picolinate, which is then treated with 2-chloro-4-iodopyridine to form the diiodopyridazine skeleton.

2-chloro-4-iodopyridine is another upstream product used in the production of 3,6-diiodopyridazine.
It is a colorless liquid with a foul odor that is used in the second step of the synthesis, which involves the reaction of 2-chloro-4-iodopyridine with sodium hydroxide to form the diiodopyridazine skeleton.

Downstream Products

Once 3,6-diiodopyridazine has been synthesized, it can undergo further chemical reactions to form various downstream products.
One of the most common downstream products is 3,6-diiodopyridazine carboxylate, which is used as a catalyst for the production of polyester resins.

To create 3,6-diiodopyridazine carboxylate, 3,6-diiodopyridazine is treated with carboxylic acids such as sebacic acid, maleic acid, or fumaric acid.
This reaction forms the carboxylate group, which can be used as a catalyst for the production of polyester resins.
The resulting product is a white to off-white solid that is soluble in organic solvents.

Another downstream product of 3,6-diiodopyridazine is 3,6-diiodopyridazine sulfonate, which is used as a flame retardant in plastics and textiles.
To create 3,6-diiodopyridazine sulfonate, 3,6-diiodopyridazine is treated with sulfuric acid, resulting in the formation of the sulfonate group.
This product is a white to off-white solid that is soluble in water and organic solvents.

3,6-diiodopyridazine can also be used as a precursor for the production of other chemical compounds, such as agrochemicals and pharmaceuticals.
For example, it can be converted into 3,6-diiodonicotinic acid, which is used as an herbicide.

Production and Trade

3,6-diiodopyridazine is typically produced by chemical companies that specialize in the production of intermediate and specialty chemicals.
The production process involves several steps, such as the synthesis of the diiodopyridazine skeleton from picolinic acid and 2-chloro-4-iodopyridine, followed by the formation of the carboxylate or sulfonate groups.

The demand for 3,6-diiod