102174-89-0

Upstream product

• 82515-50-2 2,2-bis(hydroxymethyl)propane-1,3-diol 
• 552-89-6 2-nitro-benzaldehyde 
• 115-77-5 Pentaerythritol 

Downstream Products

• 553-74-2 nitrin 
• 113164-09-3 5-hydroxymethyl-2-(2-nitro-phenyl)-5-(2-nitroso-benzoyloximethyl)-[1,3]dioxane 

Relevant academic research and scientific papers

Acetalation of pentaerithritol catalyzed by an Al-pillared saponite

Acetalation of pentaerithritol has been carried out in the presence of an Al-pillared saponite. Several carbonyl compounds were used, including aldehydes and ketones. Yields between 72 and 93% were obtained in all cases, except in the case of veratraldehyde where the carbonyl group was blocked. The high conversion could be explained by diffusion effects of intermediates and electronic effects between the reactants in the transition state. The catalyst was found to be active after three cycles.

AIE fluorescent probe for detecting copper ions as well as preparation method and application of AIE fluorescent probe

The invention belongs to the technical field of fluorescence analysis, and particularly relates to an AIE compound for detecting copper ions, a preparation method of the AIE compound and an application of the AIE compound as a fluorescent probe for detecting the copper ions. The preparation method of the probe compound comprises the following steps: mixing a compound A and a compound B, adding the mixture into EtOH, and reacting at normal temperature for 20-24 hours to obtain an orange solid fluorescent probe compound C. The compound C is dissolved in a solvent system in which the volume ratio of tetrahydrofuran to water is 1: 9, a fluorescent probe solution with the concentration of 4*10 mol/L is prepared, the fluorescent probe has the advantages of being good in stability, high in interference resistance, fast in response and simple in preparation method, the copper ion detection limit can reach 3.53*10 mol/L, and the fluorescent probe can be used for high-selectivity sensitive detection of copper ions.

Fluorescent probe for detecting Zn and preparation method thereof

The invention relates to the field of small molecular fluorescent probes, in particular to a fluorescent probe for detecting Zn and a preparation method thereof. The synthesized fluorescent probeadopts a molecular structure as shown in the description, wherein in a general formula, R1 is a halogen group or a linear alkyl group, R2 is a halogen group or a C1-5 fatty alkyl group, and R3 is a linear alkyl group, a branched alkyl group or a C1-10 aryl group. The fluorescent probe is simple in synthesis method and has good Zn recognizing performance; Na, K, Ca, Mg, Cu, Co, Ni, Fe, Hg, Al, Cd, Ag, Ba, Pb, Mn, Co, NH and other ions do not affect detection. In an environment with the pH of 7-10, the fluorescence intensity ofa solution keeps a linear relation with the Zn concentration in the range of 1*10mol/L to 1.8*10mol/L, and relatively high sensitivity is shown.

Oxa-spiro bridged UPy compound and synthesis method thereof

The invention relates to a compound and a synthesis method thereof, in particular to an oxa-spiro bridged UPy compound and a synthesis method thereof. The oxa-spiro bridged UPy compound is an oxa-spiro bridged UPy compound condensed on basis of pentaerythritol. The synthesis method comprises the steps as follows: an oxa-spiro binitro compound is synthesized firstly, an oxa-spiro biamino compound is synthesized, then, an activated UPy compound is synthesized, and finally, the oxa-spiro bridged UPy compound based on pentaerythritol is synthesized. The method is simple in process and has wide application prospects, and raw materials are easy to obtain. Resources can be saved and the total yield can be increased. A dynamically reversible super-molecular polymer structure with good mechanical performance is formed.

A green recyclable poly(4-vinylpyridine)-supported copper iodide nanoparticle catalyst for the chemoselective synthesis of pentaerythritol diacetals from aromatic aldehydes

Poly(4-vinylpyridine)-supported copper(I) iodide nanoparticles have been used as an efficient, green recyclable catalyst for the chemoselective synthesis of pentaerythritol diacetals from aromatic aldehydes and pentaerythritol under solvent-free conditions. This catalyst was reused six times without any loss of its activity.

Acetalization of carbonyl compounds as pentaerythritol diacetals and diketals in the presence of cellulose sulfuric acid as an efficient, biodegradable and reusable catalyst

This paper reports a practical and green method for the acetalization of carbonyl compounds as pentaerythritol diacetals and diketals derivatives using cellulose sulfuric acid as a biodegradable and reusable solid acid catalyst under thermal solvent-free conditions.

Synthesis of diacetals from aldehydes and ketones with pentaerythritol catalysed by the ZrO2/S2O82- solid superacid

A manipulatively simple and rapid procedure for the synthesis of diacetals from 2,2-bis(hydroxymethyl)-1, 3-propanediol with aldehydes and ketones in refluxing benzene or toluene using the ZRO2/S2O 82- solid superacid as catalyst in 80-98% yields has been described.

Synthesis of diacetals from aldehydes and ketones with pentaerythritol catalyzed by silica sulfate under microwave irradiation

The synthesis of diacetals from pentaerythritol with aldehydes and ketones is carried out under microwave irradiation in 80-98% yields with silica sulfate as catalyst.

An efficient procedure for the synthesis of diacetals from the InCl3·4H2O catalysed reaction of 2,2-bis (hydroxymethyl)-1,3-propanediol with aldehydes or ketones

Diacetals of carbonyl compounds are synthesised in good yields by the InCl3·4H2O catalysed condensation reactions.

A practical and efficient procedure for preparation of diacetals from 2,2-bis (hydroxymethyl) propane-1,3-diol with aldehydes and ketones catalysed by anhydrous ferrous sulfate

Synthesis of diacetals in excellent yields from aldehydes and ketones with 2,2-bis(hydroxymethyl)propane-1,3-diol is carried out in refluxing benzene or toluene with anhydrous ferrous sulfate as catalyst.