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Date: 8-1-2020
1249
Date: 10-7-2016
2028
Date: 5-7-2019
1366
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E = entgegan ("trans") Z = zusamen ("cis")
Priority of groups is based on the atomic mass of attached atoms (not the size of the group). An atom attached by a multiple bond is counted once for each bond.
fluorine atom > isopropyl group > n-hexyl group
deuterium atom > hydrogen atom
-CH2-CH=CH2 > -CH2CH2CH3
Example .1
Try to name the following compounds using both conventions...
Answer:
Structure 1: (trans) 2-pentene or (E) 2-pentene
Structure 2: cis and trans convention cannot be used there are more than two non hydrogen attachments to the alkene
(E) 3-isopropyl-2-hexene or (E) 3-(1-methylethyl)-2-hexene
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تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
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أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
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قسم شؤون المعارف ينظم دورة عن آليات عمل الفهارس الفنية للموسوعات والكتب لملاكاته
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