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Synthesis and Circular Dichroism of Cholestenopyrimidines

✍ Scribed by Hajós, GyöRgy ;Snatzke, Günther

Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
303 KB
Volume
1989
Category
Article
ISSN
0947-3440

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✦ Synopsis

Cholestenopyrimidines 'Thc sqnttlcscs of two new ([2.3-d]-and [3,2-d]-ruuud) kholcstenopyrimidirics 2 and 5 are dcxribcd. 111 thcir CD spcctra. tour Cotton cll'cvts can hE obscrvcd. and thcy liavc bccn assign& to a n n -K * [R!). R--x* (l3:). wid to two n-n* (A?) transiiions. rcrpctivdy. from Ions 10 short wavelcngrhs. Thc first two C o ~o o cffccts are positive for comprrunds t a and 2b, hut ncgiitivc lor 5; ihc third CD is negative. the fourth one posiiive For all isomers.

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