1400980-68-8

Basic information

• Product Name: 6,8-di-tert-butyl-3-(4-((trimethylsilyl)butadiynyl)phenethyl)-3,4-dihydro-2H-benz[1,3]oxazine
• Synonyms: 6,8-di-tert-butyl-3-(4-((trimethylsilyl)butadiynyl)phenethyl)-3,4-dihydro-2H-benz[1,3]oxazine
• CAS NO: 1400980-68-8
• Molecular Weight: 471.758
• Mol File: 1400980-68-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 6,8-di-tert-butyl-3-(4-((trimethylsilyl)butadiynyl)phenethyl)-3,4-dihydro-2H-benz[1,3]oxazine(CAS DataBase Reference)
• NIST Chemistry Reference: 6,8-di-tert-butyl-3-(4-((trimethylsilyl)butadiynyl)phenethyl)-3,4-dihydro-2H-benz[1,3]oxazine(1400980-68-8)
• EPA Substance Registry System: 6,8-di-tert-butyl-3-(4-((trimethylsilyl)butadiynyl)phenethyl)-3,4-dihydro-2H-benz[1,3]oxazine(1400980-68-8)

Safety Data

• Hazardous Substances Data: 1400980-68-8(Hazardous Substances Data)

Upstream product

• 1400980-65-5 6,8-di-tert-butyl-3-(4-((trimethylsilyl)ethynyl)phenethyl)-3,4-dihydro-2H-benzo[e][1,3]oxazine 
• 1400980-64-4 3-(4-bromophenethyl)-6,8-di-tert-butyl-3,4-dihydro-2H-benzo-[e][1,3]oxazine 
• 18163-47-8 iodoethynyltrimethylsilane 
• 1400980-66-6 6,8-di-tert-butyl-3-(4-ethynylphenethyl)-3,4-dihydro-2H-benz[1,3]oxazine 

Relevant articles and documents

Macromolecular polyyne-containing benzoxazines for cross-linked polymerization

A Mannich condensation of 2,4-di-tert-butylphenol, p-bromophenethylamine, and formaldehyde followed by a Sonogashira coupling of the resulting 3-(4-bromophenethyl)-6,8-di-tert-butyl-3,4-dihydro-2H-benz[1,3]oxazine (1-Br) with TMSCCH gave acetylenic benzoxazine 1-C2TMS which was a precursor for polyynic derivatives. Firstly, it was deprotected with K2CO 3 in iPrOH/MeOH to give the terminal acetylene 1-C2H, which was subsequently dimerized to the symmetrical diyne 1-C4-1. Next, 1-C2H was transformed to 1-C4TMS via a Cadiot-Chodkiewicz coupling, and then 1-C4TMS was homocoupled with in situ deprotection to give octatetrayne 1-C8-1. X-ray diffraction studies of 1-C8-1 showed distinctive chain bending and a packing analysis revealed the potential for 1,n-topochemical polymerization that implies a cross-linking opportunity. 2012 Elsevier Ltd. All rights reserved.