The Upstream and Downstream products of 9,9'-Diphenyl-9H,9'H-3,3'-bicarbazole

9,9'-Diphenyl-9H,9'H-3,3'-bicarbazole (DPDBC) is a chemical compound that is widely used in the production of a variety of products in the chemical industry.
DPDBC is an important intermediate in the synthesis of some pigments, dyes, and pharmaceuticals.
In this article, we will explore the upstream and downstream products of DPDBC in the chemical industry.

Upstream Products

The upstream products of DPDBC are primarily raw materials that are used in its synthesis.
Some common upstream products include aniline, sodium hydroxide, and formaldehyde.
These raw materials are used to produce DPDBC through a series of chemical reactions, such as the following:

C6H5NO2 + NaOH + H2O → H3NO2 + C6H4(NO2)2
C6H4(NO2)2 + 2 NaOH + H2O → Na2NO2 + 2 H2O + C6H4(NO2)2

Downstream Products

The downstream products of DPDBC are the end products that are derived from its synthesis.
Some common downstream products include dyes, pigments, and pharmaceuticals.
DPDBC is used as an intermediate in the synthesis of these products.
For example, it can be used to produce the dye Nickerson's reagent R, which is used in the analysis of sugar.

Nickerson's Reagent R:

DNIC + NaNO2 + H2O → DNIC + NaNO3 + H2O

Another downstream product of DPDBC is the pigment Victoria Blue B, which is used in printing ink and textile dyeing.

Victoria Blue B:

C6H5NO2 + C6H5NO2 + H2O → H2O + 2 C6H4(NO2)2

Pharmaceuticals:

DPDBC can also be used as an intermediate in the synthesis of some pharmaceuticals.
For example, it can be converted into the anticancer drug Irinotecan.

Irinotecan:

DPDBC + Pt(OAc)2 + DMF + H2O → Irinotecan catalytic hydrogenation → Irinotecan

In summary, 9,9'-Diphenyl-9H,9'H-3,3'-bicarbazole (DPDBC) is an important intermediate in the synthesis of a variety of products in the chemical industry, including dyes, pigments, and pharmaceuticals.
These downstream products are derived from the synthesis of DPDBC through a series of chemical reactions.
The upstream products of DPDBC are primarily raw materials that are used in its synthesis.