Chemistry of the Versatile (Hydroxymethyl)phosphinyl P(O)CH2OH Functional Group
摘要:
(Hydroxymethyl)phosphorus compounds are well-known and valuable compounds in general; however the use of (hydroxymethyl)phosphinates (RP)-P-1(O)(OR2)CH2OH in particular has been much more limited. The potential of this functionality has not yet been fully realized because the mild unmasking of the hydroxymethyl group was not available. The mild oxidative conversion of (RP)-P-1(O)(OR2)CH2OH into (RP)-P-1(O)(OR2)H using the Corey-Kim oxidation is described. Other reactions preserving the methylene carbon are also reported.
Generation of a Key Synthon of Indole Alkaloid Synthesis by Palladium(II)‐Catalyzed Indole 2‐Methylenephosphorylation
作者:Yuan Niu、Peng‐Bo Bai、Qin‐Xin Lou、Shang‐Dong Yang
DOI:10.1002/cctc.202000415
日期:2020.7.21
A palladium‐catalyzed Catellani‐type reaction of indole with diethyl (iodomethyl)phosphonate has been developed. This new protocol provides an efficient and concise route to 2‐methylene phosphonate indoles, which are key synthons for the construction of indolealkaloids.