Functionalization of aminocrown ethers with [2H]-chromene units by Buchwald–Hartwig C–N coupling for constructing of photoswitchable molecular devices

Functionalization of the diaminodibenzocrown ethers with 2H-[1]benzopyrane and 3H-naphtho[2,1-b]pyrane units by Buchwald–Hartwig C–N coupling was developed. It is demonstrated that the novel molecule possesses photochromic properties that can be modified by the complex formation process.