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Date: 8-7-2018
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Date: 31-5-2016
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Date: 26-7-2019
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Biogenetic type cyclization
A remarkable biogenetic type cyclization of Nerolidol to Cedrene was reported by Anderson et.al.,(Tet. Lett., 2455 (1972). The cyclizations could be accomplished in two steps. With formic acid a six membered ring is first formed. Further treatments with triflouroacetic acid completed the synthesis. The overall yield was very moderate (Figure 1.1).
Figure 1.1
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"إنقاص الوزن".. مشروب تقليدي قد يتفوق على حقن "أوزيمبيك"
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الصين تحقق اختراقا بطائرة مسيرة مزودة بالذكاء الاصطناعي
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مكتب السيد السيستاني يعزي أهالي الأحساء بوفاة العلامة الشيخ جواد الدندن
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