Intermolecular processes thiocarbonylation

It is also worthy to note that the intramolecular [3 + 2] cycloaddition of thiocarbonyl ylides occurs easily with nonactivated C=C bonds, whereas the corresponding intermolecular process does not occur. 

The critical role of carbohydrate recognition in cellular functioning has impelled aggressive research directed toward the understanding and control of the intermolecular processes involved in carbohydrate metabolism and signaling. Modified saccharide structures incorporating /V-thiocarbonyl... 

A recent synthesis of ( )-supinidine involved the same reaction as a key step to form a 5-membered ring [168]. An intermolecular reaction of a car-benoid with a thionolactone in the manno-series led to a thiirane and the alkene product of desulfurisation [67]. A similar process was observed in the case of a dithioester leading, after desulfurisation, to a thiophene, and a reaction with a thioamide furnished a thiocarbonyl ylid which could be trapped by an electron poor olefin [169]. 

---