Enantioselective Synthesis of Atropisomers Featuring Pentatomic Heteroaromatics
نویسندگان
چکیده
منابع مشابه
Carbamate-directed benzylic lithiation for the diastereo- and enantioselective synthesis of diaryl ether atropisomers
Diaryl ethers carrying carbamoyloxymethyl groups may be desymmetrised enantio- and diastereoselectively by the use of the sec-BuLi-(-)-sparteine complex in diethyl ether. Enantioselective deprotonation of one of the two benzylic positions leads to atropisomeric products with ca. 80:20 e.r.; an electrophilic quench typically provides functionalised atropisomeric diastereoisomers in up to 97:3 d.r.
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ژورنال
عنوان ژورنال: Chinese Journal of Organic Chemistry
سال: 2019
ISSN: 0253-2786
DOI: 10.6023/cjoc201904030