单词 | threitol |
释义 | threitoln. Chemistry. A crystalline tetrahydroxy alcohol, HOCH2(CHOH)2CH2OH, formed by the reduction of threose. ΘΚΠ the world > matter > chemistry > organic chemistry > alcohols > [noun] > tetrahydric alcohols > named pentaerythritol1892 threitol1935 1935 Jrnl. Amer. Chem. Soc. 57 2262/2 Consistency also strongly urges limiting the term ‘erythritol’ to the natural inactive alcohol.., and using the terms ‘d- threitol’ (rotating + 4·33° in water) and ‘l- threitol’ (rotating − 4·4° in water) for the active tetritols derived, respectively, from the two threoses. 1948 Biochem. Jrnl. 42 330/1 The new product is apparently identical with the substance synthesized by Maquenne from natural xylose and described under the name of ‘l-erythritol’. The name was later changed to ‘d-erythritol’ in accordance with the Rosanoff convention for sugars, but recently it has been thought advisable to change the name to d- threitol to relate it more closely to the tetrose threose. 1960 Biochem. Jrnl. 77 272/1 Preparations are given for l- threitol and mesoerythritol. 1975 Nature 11 Dec. 519/1 In adult tenebrionid beetles..an unusual combination of two polyhydric alcohols, sorbitol and threitol, is associated with the ability to tolerate prolonged freezing to at least − 50°C. The occurrence of threitol is of particular interest, since this compound has not previously been found in nature. This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018). < n.1935 |
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