27165-88-4

Usage

InChI:InChI=1/C18H18/c1-2-14-9-17-5-3-15-7-13(1)8-16(11-15)4-6-18(10-14)12-17/h7-12H,1-6H2

Upstream product

• 27165-87-3 2,11,20-trithia<3₃> (1,3,5)-cyclophane 
• 27341-04-4 2,11,20-Trithia<3.3.3><1.3.5>cyclophan-trisulfon 
• 18226-42-1 1,3,5-Tris(bromomethyl)benzene 
• 27313-56-0 <2.2.2>(1,3,5)Cyclophan-1,9,17-trien 
• 127395-53-3 <3.3.3>(1,3,5)Cyclophane-2,11,20-trione 

Downstream Products

• 42053-19-0 5,13-dimethyl[2.2]metacyclophane 
• 10549-25-4 2,7-dimethyl-4,5,9,10-tetrahydropyrene 
• 62941-04-2 2,7-dimethyl-4,5-dihydropyrene 
• 127699-77-8 13-Methyl-6-phenylsulfanylmethyl-tricyclo[9.3.1.1^4,8]hexadeca-1⁽¹⁴⁾,4,6,8⁽¹⁶⁾,11⁽¹⁵⁾,12-hexaene 
• 15679-24-0 2,9-dimethylpyrene 

Relevant academic research and scientific papers

EINE EINFACHE SYNTHESE VON /2n/CYCLOPHANEN

/2n/cyclophanes are prepared in a one-step process from bromomethyl benzenes and (Ph3P)2Ni(C2H4).

Further validation of the structure of Boekelheide's novel C18H24 hydrocarbon

Structure of the novel C18H24-cage hydrocarbon 5, described by Boekelheide and Hollins from 3> (1,3,5)-cyclophane 6 has been verified through its diagnostic 13C NMR data.

New Synthetic Method of Cyclophanes via Diselenacyclophanes

Syntheses of cyclic diselenides through diselenolates and the following deselenation reactions by means of three ways were studied.The preparation of the cyclic diselenides in the presence of excess sodium borohydride gave thirty-eight diselenides containing diselenacyclophanes and alicyclic diseleno compounds in high yields in addition to two triple-bridged selenacyclophanes.Photodeselenation of the diselenides in tris(dimethylamino)phosphine afforded series of cyclophanes in much higher yields than those of the other two methods, i.e. benzyne-Stevens rearrangement/Raney nickel hydrogenolysis and pyrolytic deselenation at ca. 650 deg C.The present study demonstrates that the photodeselenation method combined with the synthesis of their precursor diselenides, is much superior to the conventional dechalcogenation methods.

SYN-5,13-DIMETHYLMETACYCLOPHANE. SYNTHESIS, SPECTRA AND THERMAL STABILITY

The title compound was synthesized in 3 steps from trithia3>(1,3,5)cyclophane.Activation parameters for its change to the anti conformer as well as its NMR, IR and UV spectra were secured.