(S)-1-(Ethoxycarbonyl)ethyl(2R,5S)-2,5-dimethyl-1,3-dioxolan-4-one-2-carboxylate
نویسندگان
چکیده
The title compound was obtained in low yield the condensation of ethyl pyruvate and lactic acid. Its structure is determined by NMR methods x-ray diffraction mechanism for formation this 1:2 adduct from initial 1:1 considered.
منابع مشابه
(4R)-4-Benzyl-3-{(4S)-4-chloro-4-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]butanoyl}-1,3-oxazolidin-2-one
The title compound, C(19)H(24)ClNO(5), was synthesized and subsequently employed in an Evans alkyl-ation. The purpose was to prove the absolute configuration in the projected synthesis of the side chain of (-)-Lytophilippine A. The oxazolidinone and the isopropylidene acetal rings have twisted conformations. The oxazolidinone and side-chain carbonyl groups are orientated in an anti-periplanar a...
متن کامل(S)-6-{[(S)-2,2-Dimethyl-1,3-dioxolan-4-yl]methyl}-5,5-difluoro-5,6-dihydro-2H-pyran-2-one
The title compound, C(11)H(14)F(2)O(4), is a γ,γ-gem-difluorinated α,β-unsaturated δ-lactone. The dioxolane five-membered ring and the lactone ring adopt half-chair conformations. There are two inter-molecular C-H⋯O inter-actions involving the carbonyl group as an acceptor which stabilize the crystal structure.
متن کامل(S)-3-Dimethylamino-2-{(4S,5R)-5-[(R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-1,3-dioxolan-4-yl}-2-hydroxypropanoic acid
The Kiliani reaction on 1-de-oxy-(N,N-dimethyl-amino)-d-fructose, itself readily available from reaction of dimethyl-amine and d-glucose, proceeded to give access to the title β-sugar amino acid, C(15)H(27)NO(7). X-ray crystallography determined the stereochemistry at the newly formed chiral center. There are two mol-ecules in the asymmetric unit; they are related by a pseudo-twofold rotation a...
متن کامل(R)-2-[(R)-2,2-Dimethyl-1,3-dioxolan-4-yl]-1,3-oxathiolan-5-one
In the title compound, C(8)H(12)O(4)S, the two five-membered rings both adopt envelope conformations. In the crystal, weak C-H⋯O inter-actions link neighbouring mol-ecules.
متن کاملNITROIMIDAZOLES IV [I]. SYNTHESIS OF 3,s-DICARBO ALKOXY-2,6-DIMETHYL-4-(1 -METHYL-5- NITRO-2-1MIDAZOLYL)-1,4-DIHYDROPYRIDIANNE D 3,5-DICARBOALKOXY- 2,6-DIMETHYL-4(-2 -S UBSTI - TUTED-4-THIAZOLYL)-l , 4- DIHYDROPYRIDINE
Different procedures for the syntheses of the title compounds were investigated. The best method for the preparation of the title compounds were the reaction of the readily available 2-formyL-1-methyl-5-nitroimidazole2- substituted-4-formylthiazoles with alkyl acetoacetate and alkyl aminocrotonate in boiling alcohol.
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ژورنال
عنوان ژورنال: Molbank
سال: 2021
ISSN: ['1422-8599']
DOI: https://doi.org/10.3390/m1178