Syntheses of methyl α-dl-mycaminoside, methyl α-dl-oleandroside, methyl β-dl-cymaroside, methyl α-dl-tyveloside and methyl α-dl-chromoside C
✍ Scribed by S. Yasuda; T. Matsumoto
- Book ID
- 103399721
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- French
- Weight
- 512 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0040-4020
No coin nor oath required. For personal study only.
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## Abstract 1‐O‐ and 5‐O‐Methyl‐^14^C‐myo‐inositols (methyf‐^14^C‐bornesitol and ‐sequoyitol) were synthesized by methylation of appropriately blocked myo‐inositol derivatives with methyl = ^14^C iodide and potassium hydroxide. The benzyl blocking groups of 1‐O‐methyl‐^14^C‐3,4,5, 6‐tetra‐O‐benzyl‐
## Abstract A method is described by which methylamine‐^14^C is qenerated from its hydrochloride by N,N‐diisopropylethylamine in the presence of maleamic acid to produce the title compound in high yield.
The s e l f -d e c o m p o s i t i o n r a t e o f DL-/methyl-14C/carnitine (32 m C i / mmol) i n t h e c r y s t a l l i n e b e t a i n e f o r m was s t u d i e d . I t was found t o be decomposed t o 39.5 i n 4.5 y e a r s . On t h i s b a s i s a s e l fd e c o m p o s i t i o n c o e f f i c i