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The first one-pot three-component coupling reaction of O,O-diethyl hydrogen phosphorodithioate, aldehydes, and aldimines affording 1,2,4-trisubstituted 1,3-thiazetidines is reported. The product is obtained in moderate to high yields (45–94%) and has excellent diastereoselectivity (90–96%) in favour of the cis isomer. Shorter reaction times, ambient temperature, operational simplicity, and high yields...
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