26.08.2019 • Product

Allessan CAP: The versatile and cost saving coupling reagent

Photo

Due to its outstanding properties, it is safe to handle and easy to store. Additionally, using Allessan® CAP will lower your overall process costs, compared to staying with the standard protocol, applying DCC/ HOBt.

Use of coupling reagents for converting carboxylic acids is nowadays widely spread. Specialized coupling reagents, enabling direct condensation of a carboxylic acid moiety and an alcohol or amine, offer a superior direct approach towards highly valuable carboxylic acid derivatives. Among these coupling reagents, Allessan® CAP offers a wide range of benefits.

Apart from its long shelf life (36 months), its high thermal stability (up to 300°C) and its excellent safety profile (no CMR-properties associated), Allessan® CAP proves to be the no. 1 alternative to coupling reagents such as DCC/HOBt, EDC, or CDI.

Being produced in Germany in an ISO9001 & ISO14001 certified facility for more than one decade, no supply chain interruptions due to tightened environmental regulations are to be expected, giving peace of mind to any procurement/supply chain associate.

Besides its outstanding properties, Allessan® CAP offers serious cost savings switching to an alternative protocol (figure 2). This is the case for example for the synthesis of active pharmaceutical ingredients (APIs) using Allessan® CAP (see figure 3).

Possible uses of Allessan® CAP include amidations, esterifications, Swern-type oxidations as substitute for oxalyl dichloride, and as catalyst during Aza-Diels-Adler reactions.

For more information please contact us via intermediates@weylchem.com.

Company

Logo:

WeylChem International GmbH

Alt-Fechenheim 34
60386 Frankfurt
Germany

Company contact







Free Virtual Event

Batteries and Hydrogen: Competitors or Partners?
CHEManager Spotlight

Batteries and Hydrogen: Competitors or Partners?

17 September 2026 | Reserve your spot to learn where solid-state batteries and green hydrogen are headed—and how leading teams are turning them into scalable energy storage solutions.

From Catalogue to Collaboration

Enamine's Expert Insights Collection Is Free to Download
Enamine’s 35 Years of Advancing Drug Discovery

Enamine's Expert Insights Collection Is Free to Download

From catalogue to collaboration — explore 35 years of drug discovery breakthroughs, novel building blocks, and the science shaping tomorrow's medicines. Download your complimentary copy now.

most read