136745-52-3

Basic information

• Product Name: 1,3,5-Trioxa-2,4-disila-6-boracyclohexane, 2,2,4,4,6-pentaphenyl-
• CAS NO: 136745-52-3
• Molecular Formula: C30H25BO3Si2
• Molecular Weight: 500.509
• Mol File: 136745-52-3.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1,3,5-Trioxa-2,4-disila-6-boracyclohexane, 2,2,4,4,6-pentaphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3,5-Trioxa-2,4-disila-6-boracyclohexane, 2,2,4,4,6-pentaphenyl-(136745-52-3)
• EPA Substance Registry System: 1,3,5-Trioxa-2,4-disila-6-boracyclohexane, 2,2,4,4,6-pentaphenyl-(136745-52-3)

Safety Data

• Hazardous Substances Data: 136745-52-3(Hazardous Substances Data)

Usage

Molecular structure

1,3,5-Trioxa-2,4-disila-6-boracyclohexane, 2,2,4,4,6-pentaphenylis a cyclic organoborane compound with a six-membered ring consisting of boron, silicon, and oxygen atoms.

Phenyl groups

The compound contains five phenyl groups, which are aromatic rings made of six carbon atoms each.

Potential applications

Due to its unique structure and properties, this chemical compound has potential applications in the field of organic chemistry and materials science.

Aromatic nature

The presence of phenyl groups in the compound gives it an aromatic character, which contributes to its stability and reactivity.

Stability

The compound's stability is attributed to the presence of the six-membered ring and the aromatic phenyl groups.

Reactivity

The compound's reactivity can be influenced by the presence of the boron and silicon atoms in the ring, as well as the phenyl groups.

Synthesis

The synthesis of this compound may involve the formation of the six-membered ring through a series of reactions involving boron, silicon, and oxygen precursors, followed by the attachment of the phenyl groups.

Physical properties

The physical properties of this compound, such as melting point, boiling point, and solubility, may be influenced by its molecular structure and the presence of the phenyl groups.

Spectroscopic analysis

Techniques like NMR, IR, and UV-Vis spectroscopy can be used to study the structure and properties of this compound, providing valuable information about its chemical environment and electronic structure.

Upstream product

• 7756-87-8 1,3-dichloro-1,1,3,3-tetraphenyldisiloxane 
• 98-80-6 phenylboronic acid 
• 791-31-1 triphenylhydroxysilane 
• 1104-93-4 1,1,3,3-tetraphenyldisiloxane-1,3-diol 

Downstream Products

• 141613-73-2 (C₆H₅BO)((C₆H₅)2SiO)4 
• 141613-72-1 (C₆H₅BO)((C₆H₅)2SiO)3 
• 141613-71-0 (C₆H₅BO)2((C₆H₅)2SiO)4 

Relevant articles and documents

Synthesis, properties, and ring-ring transformation reactions of cyclic siloxanes incorporating skeletal boron atoms: X-ray crystal structures of the strained boracyclotrisiloxane (PhBO)(Ph2SiO)2 and the boracyclotetrasiloxane (PhBO)(Ph2SiO)3

The cyclic boratrisiloxanes (PhBO)(RR′SiO)2 (1, R = R′ = Me; 2, R = Me, R′ = Ph; 3, R = R′ = Ph) have been prepared via the reaction of the dichlorodisiloxanes 1,3-ClRR′SiOSiRR′Cl with phenylboric acid in the presence of NEt3 as an HCl acceptor. Similar procedures using the appropriate α,ω-dichlorosiloxanes ClMe2Si(OSiMe2)nOSiMe2Cl (n = 1 or 2) afforded the boracyclotetrasiloxane (PhBO)(Me2SiO)3 (4) and the boracyclopentasiloxane (PhBO)(Me2SiO)4 (5). The boracyclotetrasiloxane (PhBO)(Ph2SiO)3 (8) was isolated in low yield from the reaction of 2:1 excess of 1,3-ClPh2SiOSiPh2Cl with PhB(OH)2 in the presence of NEt3. The cyclic borasiloxanes 1 and 3 undergo extensive ring-ring transformation reactions when heated at elevated temperatures in the presence of small quantities of K[OSiMe3]. Similar reactions were detected in solution in the presence of acid or base catalysts. The products of these reactions mainly consist of larger rings containing a single boron atom, together with cyclic and polymeric siloxanes and the boroxin [PhBO]3. Similar, but slower, ring-ring redistribution reactions were detected for the boracyclotetrasiloxane 4. These results are consistent with the presence of additional strain in borasiloxanes containing a six-membered ring. This analysis was supported by a comparison of X-ray structural data obtained for 3 with that for 8. Thus, the boracyclotrisiloxane 3 was found to possess a highly strained six-membered ring with considerable bond angle distortion whereas the nonplanar eight-membered ring present in 8 is appreciably less strained. Crystals of 3 are monoclinic, space group C2/c, with a = 15.703 (6) A?, b = 10.864 (3) A?, c = 17.733 (4) A?, β = 119.14 (2)°, V = 2641 (14) A?3, and Z = 4. Crystals of 8 are monoclinic, space group P21/n, with a = 14.692 (2) A?, b = 13.707 (2) A?, c = 19.932 (3) A?, β = 111.38 (0)°, V = 3737.7 (9) A?3, and Z = 4.

Triphenylsiloxy and Diphenylsiladioxy Derivatives of Boron

Tris(triphenylsiloxy)borane, phenyl bis(triphenylsiloxy)borane, 2-triphenylsiloxy-1,3,2-dioxa-borolanes, -borinanes, -borole and -borin and diphenyl bis(1,3,3,2-dioxa-borolane-2-oxy)silanes have been synthesized by various routes and the reactivity of Si-O-B linkage has been compared with that of Ge-O-B and Sn-O-B linkages.Tris(triphenylsiloxy)-borane reacts with acetyic acid by cleavage of Si-O bond to give triphenylsilyl acetate and boric acid. 2-Triphenylsiloxy-1,3,2-benzodioxaborole forms 1:1 addition complexes with pyridine, triethylamine and aniline.Condensation of diphenylsilane diol with boric acid, tri(isopropoxy)borane or phenyldihydroxyborane yields cyclic derivatives.