HMB

Hayashi M, Yang T-S, Yu J, Mebel A, Chang R, Lin S H, Rubtsov I V and Yoshihara K 1998 Vibronic and vibrational coherence and relaxation dynamics in the TCNE-HMB complex J. Phys. Chem. A 102 4256-65... 

When the Ac group is removed (20% piperidine/DMF or 5% hydrazine/DMF), it becomes the Hmb group that is used to improve solubility and prevent aspar-tamide formation and is readily cleaved with TFA. The related 2-Fmoc-4-methoxybenzyl group has also been prepared and used in peptide synthesis. ... 

Figure 32-6. Conversion of porphobilinogen to uroporphyrinogens. Uroporphyrinogen synthase I is also called porphobilinogen (PBG) deaminase or hydroxy-methylbilane (HMB) synthase.

Seth-Smith HMB, SJ Rosser, A Basran, ER Travis, ER Dabbs, S Nicklin, NC Bruce (2002) Cloning, sequencing, and characterization of the hexahydro-l,3,5-trinitro-l,3,5-triazine degradation gene cluster from Rhodococcus rhodochrous. Appl Environ Microbiol 68 4764-4771. 

Fig. 108. Blumea riparia (Bl.) DC. Distributed from The Herbarium Botanic Gardens Singapore. No HMB 2589. 7/17/1961. Coll. Det. Burkill. Geographical localization Gunong Pulai. Exposed on rock. Alt 1200 ft. 

The disproportionation of nitrogen dioxide has been independently confirmed by the direct observation of nitrosonium cation as the EDA complex of hexamethybenzene by spectroscopic means as well as by the spectral comparison with the authentic [HMB, NO+] complex,240 i.e.,... 

HMB,NO+] complex. Indeed the unusually large slope in Fig. 10A for the [ArH, NO+] complexes is the distinguishing criterion for the existence of strong charge-transfer complexes (Flurry, 1965, 1969 Flurry and Politzer, 1969 Gur yanova et al., 1975). 

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