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Date: 28-7-2018
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Date: 10-5-2019
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Date: 29-5-2017
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Aldehydes (R-CHO) take the suffix “-al“. If other functional groups are present, the chain is numbered such that the aldehyde carbon is in the “1” position, unless functional groups of higher precedence are present.
If a prefix form is required, “oxo-” is used (as for ketones), with the position number indicating the end of a chain: CHOCH2COOH is 3-oxopropanoic acid. If the carbon in the carbonyl group cannot be included in the attached chain (for instance in the case of cyclic aldehydes), the prefix “formyl-” or the suffix “-carbaldehyde” is used: C6H11CHO is cyclohexanecarbaldehyde. If an aldehyde is attached to a benzene and is the main functional group, the suffix becomes benzaldehyde.
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دراسة: طريقة قيادة السيارة قد تكشف عن مرض نفسي لدى السائق
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بتكنولوجيا خاصة.. إنتاج حرير روسي عالي الجودة
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بالصور: ممثل المرجعية العليا والامين العام للعتبة الحسينية يكرمان كوادر العتبة المشاركة بافتتاح ثلاثة مشاريع في البصرة
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