Asymmetric functionalization at a prochiral carbon center by the aid of sulfinyl chirality: a selective formation of 6-substituted (3R,SS)- and (3S,SS)-3-(hydroxymethyl)-3,4-dihydro-5-(p-tolyl)sulfinyl-2H-pyrans was written by Iwata, Chuzo;Fujita, Masahiro;Moritani, Yasunori;Sugiyama, Kenji;Hattori, Kohji;Imanishi, Takeshi. And the article was included in Tetrahedron Letters in 1987.Related Products of 82962-54-7 This article mentions the following:
Ring cleavage of dioxabicyclic compd I gave (3S)- and (3R)-pyran II. A successful asym functionalization of prochiral gem-bis(hydroxymethyl) groups has been achieved by the aid of a sulfinyl chirality. In the experiment, the researchers used many compounds, for example, Ethyl 2,2-dimethyl-1,3-dioxane-5-carboxylate (cas: 82962-54-7Related Products of 82962-54-7).
Ethyl 2,2-dimethyl-1,3-dioxane-5-carboxylate (cas: 82962-54-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters contain a carbonyl center, which gives rise to 120鎺?C閳ユ弲閳ユ彊 and O閳ユ弲閳ユ彊 angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C閳ユ彊閳ユ弲 bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Related Products of 82962-54-7
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics