Manning, Morgan A.; Sun, Wei; Light, Mark E.; Harrowven, David C. published the artcile< A photochemical ring expansion of 6- to 8-membered nitrogen heterocycles by [1,3]-sigmatropic rearrangement>, Formula: C19H34O2, the main research area is azocine benzoazocine preparation; furopyridinone sigmatropic rearrangement photochem.
A new route to azocines I [R = Me; R1 = H; RR1 = (CH2)4; R2 = H, Ph; R3 = Me, Bn; R4 = Me, t-Bu] and benzoazocines II [R5 = H, 6,7,8-(OMe)3, 7-CF3, etc.; R6 = Me, t-Bu, Bn; R7 = Me, t-Bu, Si(i-Pr)3] from furopyridinones was described through a photochem. induced [1,3]-sigmatropic rearrangement. The method gave access to these 8-membered nitrogen heterocycles from di-Me squarate in four stages and with excellent atom economy by sequencing thermal and photochem. ring expansion steps under continuous flow.
Chemical Communications (Cambridge, United Kingdom) published new progress about Azocines Role: SPN (Synthetic Preparation), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics