Citation:
Chu Chi TANG, Hui Fang LANG, Li Gong WU, Zheng Jie HE, Ru Yu CHEN. STUDIES ON CHIRAL THIOPHOSPHORIC ACIDS AND THEIR DERIVATIVES 13.THE ASYMMETRIC CYCLIZATION OF (+)-SUBSTITUTED CYCLOPENTANODIAMINE WITH O-ARYL THIOPHOSPHOROCHLORIDATES[J]. Chinese Chemical Letters,
;1996, 7(3): 205-206.
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The cyclizations of (+)-cis-1,2,2-trimethyl-1,3-diaminocyclopentane 1 derived from D-camphor with O-arylthiophosphorochloridates 2 give products,(+)-2,4,3-diazaphospha-bicyclo[3,2,1] octane 3,containing two unequal amounts of diastereoisomers,a pair of which (R=OEt) has been successfully separated by silica gel column chromatography.
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