Having demonstrated that the ABS-SO3H printed catalyst is capable of promoting reactions involving carbocation intermediates (the pinacol rearrangement), we next examined the Meyer-Shuster rearrangement. This conversion typically involves ionization of propargylic alcohols to the propargyl cation and subsequent reaction with water to give enone products. 8 When a solution of the propargylic alcohol 7 is passed through the ABS-SO3H printed catalyst a good yield of the rearrangement product 8 was obtained (eq 3). This conversion involves ionization of alcohol 7 to the propargyl cation 9, which is presumably coordinated to a sulfonate anion site on the catalyst surface. Subsequent nucleophilic attack by water and deprotonation leads to cinnamaldehyde derivative 8. Similarly, alcohol 10 gave the rearrangement product 11 in high yield using the ABS-SO3H printed catalyst (eq 4).