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Date: 4-2-2019
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Date: 10-7-2019
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Date: 5-9-2018
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Acetylide anions are strong bases and strong nucleophiles. Therefore, they are able to displace halides and other leaving groups in substitution reactions. The product is a substituted alkyne.
Because the ion is a very strong base, the substitution reaction is most efficient with methyl or primary halides without substitution near the reaction center,
Secondary, tertiary or even bulky primary substrates will give elimination by the E2 mechanism.
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الصين.. طريقة لمنع تطور قصر النظر لدى تلاميذ المدارس
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ماذا سيحدث خلال كسوف الشمس يوم السبت؟
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قسم الشؤون الدينية يختتم محاضراته الرمضانية في صحن مرقد أبي الفضل العباس (عليه السلام)
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