“…[17] The most commonly knownl ignin linkages are b-O-4, a-O-4, b-1, b-b,4-O-5, b-5, and 5-5' (Figure 1b)w hile the searchf or new linkages is still ongoing. [15,16,[23][24][25][26] Amongst these linkages, b-O-4 is the most abundant and has been studied frequently for degradation in different environments. Model compounds, dimers, and oligomers, are often synthesized to unravel their cleavages mechanism forselectivedegradation.…”