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Diastereoselective Addition of Prochiral Nucleophilic Alkenes to α-Chiral N-Sulfonyl Imines
被引:8
|作者:
Gutierrez, David A.
[1
]
Fettinger, James
[1
]
Houk, K. N.
[2
]
Ando, Kaori
[3
]
Shaw, Jared T.
[1
]
机构:
[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
[2] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
[3] Gifu Univ, Fac Engn, Dept Chem & Biomol Sci, Gifu 5011193, Japan
基金:
美国国家科学基金会;
关键词:
STEREOCHEMICAL COURSE;
ASYMMETRIC-SYNTHESIS;
ANTI CROTYLATION;
ALLYLATION;
ALDEHYDES;
TRIFLUOROBORATE;
INDUCTION;
MECHANISM;
SYN;
D O I:
10.1021/acs.orglett.1c04219
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The Lewis-acid-promoted addition of prochiral E- and Z-allyl nucleophiles to chiral alpha-alkoxy N-tosyl imines is described. Alkene geometry is selectively transferred to the newly formed carbon-carbon bond, resulting in stereochemical control of C1, C2, and C3 of the resulting 2-alkoxy-3-N-tosyl-4-alkyl-5-hexene products. A computational analysis to elucidate the high selectivity is also presented. This methodology was employed in the synthesis of two naturally occurring isomers of clausenamide.
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页码:1164 / 1168
页数:5
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