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[Carbonyl]

Здравствуйте!
Посмотрите, пожалуйста, подструктуры для одного вещества и двух реакций:
1. O=C1C=CC(=O)Oc2ccccc21 (описано ли, и если да, то как синтезировали?)
2. OC(O)C(=O)OC → O=C(/C=C/C(=O)OC)c1ccccc1
3. O=CC(=O)OC → O=C(/C=C/C(=O)OC)c1ccccc1
(mol-файлы во вложении).
Спасибо.

[mishka]

1 -->

[mishka]

по поиску реакций только 2 (несубструктурно)

первая
Methyl glyoxylate + (Benzoylmethylene)triphenylphosphorane
образуется methyl trans-β-benzoylacrylate
условия
With magnesium sulfate In tetrahydrofuran; diethyl ether at 20℃; Cooling with ice;
Lu, Hai-Hua; Wang, Xu-Fan; Yao, Chang-Jiang; Zhang, Jian-Ming; Wu, Hong; Xiao, Wen-Jing
Chemical Communications, 2009, # 28, p. 4251 - 4253

или
In chloroform at 20℃;

Experimental Procedure
Step 2:
1-Phenyl-2-(triphenylphosphoranylidene)ethanone (1eq.) and methyl 2-oxoacetate (1 eq.) were dissolved in CHCl3 (0.2 M). The mixture was stirred overnightat room temperature. After removing the solvent under reduced pressure, the crudeproduct was purified by column chromatography (ethyl acetate/ petroleum ether = 1:5).

Wang, Si-Fan; Yan, Ming; Shi, Jin-Yi; Li, Guang-Xun; Zhao, Jin-Zhong
Synlett, 2024, vol. 35, # 12, p. 1441 - 1445

вторая реакция:
Methyl glyoxylate + acetophenone
образуется methyl trans-β-benzoylacrylate

условия
With sodium hydroxide In ethanol
Roy, Sanchita; Guha, Sharmistha; Kumar Dutta, Samit; Bhar, Sanjay
Synthetic Communications, 2006, vol. 36, # 13, p. 1919 - 1922

[Carbonyl]

Спасибо!