Metastable Ion Study of Organosilicon Compounds. Part XII. 2-Propoxytrimethylsilane, (CH3)3SiOCH(CH3)2.

Carbonfunctional Organosilicon Compounds: Synthesis of Some Silylcoumarins

C a r b o n f u n c t i o n a l s i l a n e s b e a r i n g c o u m a r i n t y p e f u n c t i o n a l g r o u p s a r e o f i n t e r e s t d u e t o t h e i r p o t e n t i a l i m p o r t a n c e as p r e c u r s o r s i n c o s m e t i c i n d u s t r i e s . W e r e p o r t t h e s y n t h e s i s o f s o m e 4 o r g a n o s i l i c o n d e r i v a t i v e s o f 7 h y d r o x y c o u m a ...

Some highly sterically hindered organosilicon compounds

The chemistry of organometallic compounds with bulky ligands such as (Me3Si)3C(Tsi) or (Me2PhSI)3C(Tpsi) attached to a variety of metal centres is reviewed. The compounds Tsi2M (M = Zn, Cd, Hg) and the rare two co-ordinate TsiMn show exceptional thermal and hydrolytic stability. The corresponding alkylmetal halides form ring or cage structures. In a range of new boron compounds the structures o...

Hæmatological Technique Part XII

Synthesis and Radioprotective Activity of New Organosilicon and Germanium Compounds

Silathiazolidine and metalladithioacetals (M = Si, Ge) have been prepared by the interaction of dialkyldichloro- or bis(diethylamino)dialkylsilanes and -germanes with 3-[N-(2- thioethyl)]amino-propanamide (WR-2529) and [1-thioethyl-2-(1-naphtylmethyl)]-2- imidazoline. The study of these compounds in the field of chemical radioprotection has shown a notable decrease in the toxicity and a rather ...

XII International Pigment Cell Conference: Part II

An ultrasonic measurement of melanosomes was carried out in frequencies from 0.333 MHz to 300 MHz on B16 and Harding-Passey (HP) mouse melanomas, which produce two different forms of melanosomes, i.e., ellipsoidal-lamellar melanosomes in B16 and splherical-graniular melanosomes in HP. We found that the structure of the two melanosomes is basically amorphous and co-polymeric in the molecular dim...