77-99-6Relevant articles and documents
METHOD FOR PREPARING TRIMETHYLOLPROPANE
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Paragraph 0064-0066, (2020/07/07)
A method for preparing trimethylolpropane, the method including: subjecting dimethylolbutanal (DMB) to a hydrogenation reaction in the presence of a metal catalyst and an alcohol solvent. During the hydrogenation reaction, a weight ratio of the alcohol solvent based to dimethylolbutanal is 2 to 10.
SEPARATION METHOD OF DIMETHYLOLBUTANAL AND PREPARATION METHOD OF TRIMETHYLOLPROPANE
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Paragraph 0061-0099, (2019/07/03)
The present specification relates to a separation method of dimethylolbutanal comprising: a step (A) of making n-butylaldehyde (n-BAL) react with formaldehyde (FA) under an alkylamine catalyst, thereby obtaining a dimethylolbutanal mixed product including dimethylolbutanal (DMB) and trimethylolpropane (TMP); and a step (B) of extracting 95% or more of DMB and 80% or more of TMP from the dimethylolbutanal mixed product by using a counter flow type extraction method using an organic solvent. In the step (B), the organic solvent has a flow rate of 70 to 110 g/min, the DMB mixed product has a flow rate of 40 to 70 g/min, and a weight ratio of the organic solvent to the DMB mixed product is 1.2 to 3. According to an embodiment of the present specification, the separation method can obtain DMB, at a high efficiency, which is used as a raw material for producing TMP. TMP can be obtained at a high efficiency by using the obtained DMB as a raw material for hydrogenation.COPYRIGHT KIPO 2019
Precise Steric Control over 2D versus 3D Self-Assembly of Antimony(III) Alkoxide Cages through Strong Secondary Bonding Interactions
Moaven, Shiva,Yu, Jingze,Yasin, Jason,Unruh, Daniel K.,Cozzolino, Anthony F.
supporting information, p. 8372 - 8380 (2017/07/22)
Antimony(III) alkoxide cages were designed as building blocks for predictable supramolecular self-assembly. Supramolecular synthons featuring two Sb···O secondary bonding interactions (SBIs), each SBI stronger than 30 kJ/mol, were used to drive the formation of the supramolecular architectures. Judicious choice of pendant groups provided predictable control over the formation of self-assembled 3D columnar helices, which crystallized with hollow morphologies, or a self-assembled 2D bilayer. The Sb-O stretching frequency provides a spectroscopic signature of Sb···O SBI formation.