{Here|Right here} we show that colloidal quantum dots serve as visible-lightchromophores, photocatalysts, and resuable scaffolds for homo- andhetero-intermolecular [2+2] photocycloadditions of 4-vinylbenzoic acidderivatives, with >90% tunable regioselectivity and {up to|as much as} 98%diastereoselectivity for the previously minor syn-cyclobutane {products|goods|items|merchandise|solutions},{including|such as|which includes|like} the syn-heda-to-tail cyclobutane, which has {never|by no means|in no way|never ever|under no circumstances} beenproduced {as the|because the} {major|significant|main|key|big|important} {product|item|solution} of a photochemical reaction. 2387561-40-0 web 3-Bromo-6-hydroxy-2-methylbenzaldehyde structure PMID:24025603
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