Storing Data With Propargylic Amines Using Thin-Layer Chromatography for the Data Retrieval

We developed a cost-effective method for storing medium-sized datasets in mixtures of propargylic amines as storage molecules. The synthesis of the molecules relies on a silver-catalyzed multicomponent A³ coupling, enabling fast access to various propargylic amdines. The approach requires minimal synthetic effort, and simple TLC analysis ensures straightforward retrieval of the encoded data. Demonstrated on a QR code and a two-bit image, this method enables long-term preservation of static, small-to-medium-sized datasets with high accuracy of recovery.