DABCO-Catalyzed Reaction of 2-Naphthols with Aryl Isothiocyanates: Access to 2-Iminonaphtho-1,3-oxathioles.
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DOI: 10.1021/acs.orglett.2c02736
Abstract: 2-Naphthols 1 were found to react with aryl isothiocyanates 2 to provide 2-iminonaphtho-1,3-oxathioles 3 in the presence of DABCO as a catalyst. When elemental sulfur was used, moderate to good yields of 3 could be… read more here.
Keywords: catalyzed reaction; reaction naphthols; dabco catalyzed; aryl isothiocyanates ... See more keywords
Catalytic (3 + 2) umpolung annulations of α-thioacyl carbenes with aryl isothiocyanates.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc02882d
Abstract: 1,2,3-Thiadiazoles serve as masked S-electrophilic thia-1,3-dipoles. Under rhodium/racemic BINAP catalysis, they undergo denitrogenative (3 + 2) umpolung transannulations with aryl isothiocyanates with inverse regioselectivity and excellent stereoselectivity, yielding N-aryl 3H-1,2-dithiol-(Z)-3-imines in a redox-neutral, step-efficient, and… read more here.
Keywords: catalytic umpolung; carbenes aryl; annulations thioacyl; aryl isothiocyanates ... See more keywords