77-08-7

Usage

Uses

Used in Chemical Synthesis:
5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE is used as a precursor in the synthesis of various organic compounds, particularly in the preparation of 4,7,4',7'-tetrabromo-3,3,3',3'-tetramethyl-2,3,2',3'-tetrahydro-[1,1']spirobiindene-5,6,5',6'-tetraol. This is achieved through a bromination process using bromine, which allows for the formation of new compounds with different properties and potential applications.
Used in Pharmaceutical Industry:
Although not explicitly mentioned in the provided materials, the unique structure and functional groups of 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE suggest that it may have potential applications in the pharmaceutical industry. Its hydroxyl groups can potentially form hydrogen bonds with biological targets, making it a candidate for drug development or as an intermediate in the synthesis of pharmaceutical compounds.
Used in Research and Development:
5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE can be used in research and development settings to explore its chemical properties, reactivity, and potential applications in various fields. Researchers can use 5,5',6,6'-TETRAHYDROXY-3,3,3',3'-TETRAMETHYL-1,1'-SPIROBISINDANE to study its interactions with other molecules and to develop new synthetic routes or methods for the preparation of other organic compounds.

Upstream product

• 141-79-7 4-methyl-pent-3-en-2-one 
• 120-80-9 benzene-1,2-diol 
• 504-20-1 phorone 
• 67-64-1 acetone 
• 64-19-7 acetic acid 

Downstream Products

• 2138-43-4 4-isopropylcatechol 
• 120-80-9 benzene-1,2-diol 

Relevant academic research and scientific papers

Tetramine monomer containing spiro structure, preparation method and application of tetramine monomer, and polyamide and preparation and application thereof

The invention provides a tetramine monomer containing a spiro structure and a preparation method and application thereof, and polyamide and preparation and application thereof, and belongs to the technical field of gas membrane separation. According to the invention, a spiro center in a microporous polymer (PIMs) is introduced into a tetramine monomer, so that the tetramine monomer containing an aliphatic group (methylene) and having a microporous structure can be obtained. The polyamide film prepared from the tetramine monomer has the characteristics of high gas selectivity, high permeability, good solubility, good selectivity and the like, also has excellent thermal properties, and can be used as a novel polyamide gas separation film.

Polyacid monomer and preparation method thereof, polyamide and preparation method thereof, and polyamide film

The invention provides a polyacid monomer and a preparation method thereof, polyamide and a preparation method thereof, and a polyamide film, and belongs to the technical field of organic synthesis. The polyacid monomer provided by the invention has a structure shown in a formula I or a formula II; the polyacid monomer provided by the invention has a microporous structure, a flexible group (etherbond) and a hydroxyl structure; the polyacid monomer provided by the invention is further polymerized with a diamine monomer to obtain polyamide; the polyamide film formed by the polyamide provided bythe invention simultaneously has relatively good selective permeability and permeability; and in addition, the polyamide provided by the invention has relatively good solubility.

A facile reprecipitation method for the preparation of polyimide hollow spheres with controllable morphologies and permeable shell

We present our preliminary work on the fabrication of polyimide hollow sphere by reprecipitation. Through fine-tuning the PAA concentration, many intriguing shapes, including deflated capsules, bowl-shaped and dimple-like hollow spheres can be obtained. Adding salt to the PAA solution helps the formation of PI hollow spheres with complete shells. The morphologies can be fixed through imidization, thus obtaining a controllable and reproducible method to prepare high-performance polyimide hollow spheres with various morphologies.

pH-triggered intramolecular electron transfer in asymmetric bis-dioxolene adducts

The oxidation of the bis-dioxolene 3,3,3′,3′-tetramethyl-5,6,5′,6′-tetrahydroxy-1,1′- spiro-bis(indane) (CatH2-CatH2) in acidic solution yields the o-quinone-catecholate (Q-CatH2) as a product. The mixed valence character of the molecule is removed on deprotonation yielding the paramagnetic bis-semiquinonato species due to a formally intramolecular electron transfer. Complexes of formula M(CTH)(SQ-CatH2)(PF6)2 (M = CrIII, CoIII; CTH = tetraazamacrocycle, SQ-CatH2 = semiquinonato form of CatH2-Q) were also prepared. They are six-coordinate, the semiquinonato being coordinated to the metal ion. Evidences are given that intramolecular electron transfer follows deprotonation of the non-coordinated catecholate, yielding the MIII(CTH)(Cat-SQ) species, the catecholato being coordinated to the metal ion. The obtained results provide significant examples of systems showing pH-controlled magnetic properties.