SnClJ

This chloride is prepared by dissolving tin in concentrated hydrochloric acid on cooling, the solution deposits crystals of hydrated tin(II) chloride. SnClj. 2H2O ("tin salt ). The anhydrous chloride is prepared by heating tin in a current of hydrogen chloride ... 

The D-A rxn is promoted by Lewis acids (T1CI4, BF3 AICI3, AIEt2CI, SnCLj,...)... 

The (E)-a-alkyl-/5-silylacrylate 22 is prepared by regio- and stereoselective car-bony lation of the trimethylsilylalkyne 21 using a Pd catalyst coordinated by SnClj and dppf[20]. 

Stannous chloride, SnClj THjO—0.5N 56 g per liter. The water should be acid with HCl and some metallic tin should be kept in the bottle. 

STEPHEN Aldehyde synthesis Aldehyde synthesis from nitnies and SnClj - HCI... 

Highly reactive dipolar bis(tnfluoromethyl)-subsmtuted heterodienes are excellent traps for one-skeleton-atom species , even when these are short lived The hetero-1,3-dienes add electron nch and electron poorcarbenes[/2,, 125,126,127,128 129,130], carbene complexes [131], carbene analogues [SnClj, Sn(C< H, )2, GeCl2, Gey [132, 133], isonitriles [128], etc, to give [4-t-l] cycloadducts (equation 29)... 

Schlenk equilibrium 93 s-cis 7, 9, 26, 31, 35 sdyl-substituted 16 Simmons-Smith reaction 87 SnClj 309 SnCU 309 solid-phase 198 square bipyramidal 255 rr-stacking 8 stannyl-substituted 16 s-trans 7, 26 - acrolein 307 succinimide 227 sulfonamides 122 synchronicity 306... 

Diazotised and reduced with alkaline SnClj, formic acid and copper. 

When Na-Hg is used as a reducing agent, care must be taken to insure that no undesired Hg is incorporated into the product e.g., reduction of [Co(Cl)np]BPh4 in THF with Na-Hg followed by BuOH gave the red-brown dimeric npCoHgHgConp in 65% yield , and the reaction of Hg with [NaMnfCOj] and tetraphenylporphy-rin-SnClj in THF gave a porphyrin derivative (II) with a Sn — Mn—Hg—Mn chain. ... 

Silylation-amination of 4(lH)-quinohnone 255 with a twofold excess of dopamine hydrochloride 256 as amine and an acidic catalyst affords, on heating with excess HMDS 2 for 21 h at 145 °C and subsequent transsilylation in excess boihng methanol, 75% of the crystalline hydrate of 257 (Scheme 4.28). The silylation-amination of 2-thio-6-azauracil 258 with homoveratrylamine 259, HMDS 2, and SnCLj as catalyst for 48 h at 145 °C furnishes 63% of the diamine 260, and MesSiOSiMes 7 and Me3SiSH or Me3SiSSiMe3 601 as leaving groups. 

PuCl +SnClj- PuCl - + SnClj PuCl2 + SnCl3 PuCla + SnClj... 

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