17936-80-0

Upstream product

• 56-23-5 tetrachloromethane 
• 121-43-7 Trimethyl borate 
• 868-81-5 chlorodimethoxyborane 

Downstream Products

• 52293-06-8 Cyclohexylidenylmethandiborsaeure 
• 26071-86-3 2,2'-(2-phenyl-ethene-1,1-diyl)-bis-benzo[1,3,2]dioxaborole 
• 26071-84-1 2,2'-(2,2-diphenyl-ethene-1,1-diyl)-bis-[1,3,2]dioxaborolane 
• 29173-16-8 2,2'-(1-benzyl-2-phenyl-ethane-1,1-diyl)-bis-[1,3,2]dioxaborolane 
• 24697-26-5 (C₆H₅)3SnC{B(OCH₃)2}3 
• 24697-27-6 {(C₆H₅)3Sn}2C{B(OCH₃)2}2 
• 50485-50-2 (C₆H₅)3SnCH(BOCH₂CH₂O)2 

Relevant academic research and scientific papers

Stepwise trimethylsilyl and trimethylgermyl substitutions at tetraborylmethane

In exploring the suitability of tetraborylmethane precursors as C4? synthons, we have studied the limits of stepwise trimethylsilyl and trimethylgermyl substitutions on tetrakis (1,3-propanediolatoboryl)methane. In contrast to previous reports indicating minimal silylation of tetraborylmethanes, we have shown that organolithium-mediated deborylation-metalation methodologies readily proceed for up to two substitutions. This enables the synthesis of new borylmethane derivatives including (TMS)2CB(pg)2 and (TMG)2CB(pg)2 (pg = 1,3-propanediolate, TMS = trimethylsilyl, TMG = trimethylgermyl). While further base-activated deborylation attempts lead to protodeboronation, limited reactivity, or de-esterification of the boronate ester, increasing the degree of substitution imparts air- and water-stability to the boronate esters.