一种元素有机化合物,为一种极有用的有机合成试剂.学名亚烷基三苯基磷烷.1954年由E.G.Wittig制得.维蒂希试剂可用两种共振式表示:(C6H5)3PCR′R″(C6H5)3R′R″前者称叶林,后者称叶立德(R′、R″为不同的烷基).叶林结构表示分子的极性小,在磷外围有10个电子,意味着磷的d轨道也参与了成键;叶立德结构表示分子是极性的,偶极矩较大,这是维蒂希试剂起反应的主要原因.
-
95% CAS No.:7396-44-3
-
SKU-Pack Size Availability Price(¥) Quantity R092032-250mg In-Stock(Shanghai or CA Irwindale) R092032-1g In-Stock(Shanghai or CA Irwindale) R092032-5g In-Stock(Shanghai or CA Irwindale) R092032-10g In-Stock(Shanghai or CA Irwindale) R092032-25g In-Stock(Shanghai or CA Irwindale) -
95% CAS No.:2605-68-7
-
SKU-Pack Size Availability Price(¥) Quantity R043139-1g In-Stock(Shanghai or CA Irwindale) R043139-5g In-Stock(Shanghai or CA Irwindale) R043139-10g In-Stock(Shanghai or CA Irwindale) R043139-25g In-Stock(Shanghai or CA Irwindale) R043139-100g In-Stock(Shanghai or CA Irwindale) -
95% CAS No.:2356-16-3
-
SKU-Pack Size Availability Price(¥) Quantity R040583-1g In-Stock(Shanghai or CA Irwindale) R040583-5g In-Stock(Shanghai or CA Irwindale) R040583-10g In-Stock(Shanghai or CA Irwindale) R040583-25g In-Stock(Shanghai or CA Irwindale) R040583-100g In-Stock(Shanghai or CA Irwindale) -
95+% CAS No.:18880-05-2
-
SKU-Pack Size Availability Price(¥) Quantity R136594-1g In-Stock(Shanghai or CA Irwindale) R136594-5g In-Stock(Shanghai or CA Irwindale) R136594-10g In-Stock(Shanghai or CA Irwindale) R136594-25g In-Stock(Shanghai or CA Irwindale) R136594-100g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:27710-82-3
-
SKU-Pack Size Availability Price(¥) Quantity R172178-1g In-Stock(Shanghai or CA Irwindale) R172178-5g In-Stock(Shanghai or CA Irwindale) R172178-10g In-Stock(Shanghai or CA Irwindale) R172178-25g In-Stock(Shanghai or CA Irwindale) R172178-100g In-Stock(Shanghai or CA Irwindale) R172178-500g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:1779-51-7
-
SKU-Pack Size Availability Price(¥) Quantity R034710-1g In-Stock(Shanghai or CA Irwindale) R034710-5g In-Stock(Shanghai or CA Irwindale) R034710-10g In-Stock(Shanghai or CA Irwindale) R034710-25g In-Stock(Shanghai or CA Irwindale) R034710-100g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:21406-61-1
-
SKU-Pack Size Availability Price(¥) Quantity R147863-1g In-Stock(Shanghai or CA Irwindale) R147863-5g In-Stock(Shanghai or CA Irwindale) R147863-10g In-Stock(Shanghai or CA Irwindale) R147863-25g In-Stock(Shanghai or CA Irwindale) R147863-100g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:1779-58-4
-
SKU-Pack Size Availability Price(¥) Quantity R034712-1g In-Stock(Shanghai or CA Irwindale) R034712-5g In-Stock(Shanghai or CA Irwindale) R034712-10g In-Stock(Shanghai or CA Irwindale) R034712-25g In-Stock(Shanghai or CA Irwindale) R034712-100g In-Stock(Shanghai or CA Irwindale) -
98% CAS No.:68014-21-1
-
SKU-Pack Size Availability Price(¥) Quantity R350618-1g In-Stock(Shanghai or CA Irwindale) R350618-5g In-Stock(Shanghai or CA Irwindale) R350618-10g In-Stock(Shanghai or CA Irwindale) R350618-25g In-Stock(Shanghai or CA Irwindale) R350618-100g In-Stock(Shanghai or CA Irwindale) -
98% CAS No.:1439-36-7
-
SKU-Pack Size Availability Price(¥) Quantity R030121-1g In-Stock(Shanghai or CA Irwindale) R030121-5g In-Stock(Shanghai or CA Irwindale) R030121-10g In-Stock(Shanghai or CA Irwindale) R030121-25g In-Stock(Shanghai or CA Irwindale) R030121-100g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:3020-28-8
-
SKU-Pack Size Availability Price(¥) Quantity R046762-1g In-Stock(Shanghai or CA Irwindale) R046762-5g In-Stock(Shanghai or CA Irwindale) R046762-10g In-Stock(Shanghai or CA Irwindale) R046762-25g In-Stock(Shanghai or CA Irwindale) R046762-100g In-Stock(Shanghai or CA Irwindale) -
95+% CAS No.:3462-95-1
-
SKU-Pack Size Availability Price(¥) Quantity R050603-1g In-Stock(Shanghai or CA Irwindale) R050603-5g In-Stock(Shanghai or CA Irwindale) R050603-10g In-Stock(Shanghai or CA Irwindale) R050603-25g In-Stock(Shanghai or CA Irwindale) R050603-100g In-Stock(Shanghai or CA Irwindale) -
95+% CAS No.:60682-95-3
-
SKU-Pack Size Availability Price(¥) Quantity R274610-100mg In-Stock(Shanghai or CA Irwindale) R274610-250mg In-Stock(Shanghai or CA Irwindale) R274610-1g In-Stock(Shanghai or CA Irwindale) R274610-5g In-Stock(Shanghai or CA Irwindale) R274610-10g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:51114-94-4
-
SKU-Pack Size Availability Price(¥) Quantity R225718-1g In-Stock(Shanghai or CA Irwindale) R225718-5g In-Stock(Shanghai or CA Irwindale) R225718-10g In-Stock(Shanghai or CA Irwindale) R225718-25g In-Stock(Shanghai or CA Irwindale) R225718-100g In-Stock(Shanghai or CA Irwindale) R225718-500g In-Stock(Shanghai or CA Irwindale) R225718-1000g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:89524-99-2
-
SKU-Pack Size Availability Price(¥) Quantity R453304-1g In-Stock(Shanghai or CA Irwindale) R453304-5g In-Stock(Shanghai or CA Irwindale) R453304-10g In-Stock(Shanghai or CA Irwindale) R453304-25g In-Stock(Shanghai or CA Irwindale) -
97% CAS No.:84434-11-7
-
SKU-Pack Size Availability Price(¥) Quantity R410304-5g In-Stock(Shanghai or CA Irwindale) R410304-10g In-Stock(Shanghai or CA Irwindale) R410304-25g In-Stock(Shanghai or CA Irwindale) R410304-100g In-Stock(Shanghai or CA Irwindale) R410304-500g In-Stock(Shanghai or CA Irwindale) -
98% CAS No.:1530-32-1
-
SKU-Pack Size Availability Price(¥) Quantity R031426-1g In-Stock(Shanghai or CA Irwindale) R031426-5g In-Stock(Shanghai or CA Irwindale) R031426-10g In-Stock(Shanghai or CA Irwindale) R031426-25g In-Stock(Shanghai or CA Irwindale) R031426-100g In-Stock(Shanghai or CA Irwindale) -
95+% CAS No.:3167-63-3
-
SKU-Pack Size Availability Price(¥) Quantity R048067-1g In-Stock(Shanghai or CA Irwindale) R048067-5g In-Stock(Shanghai or CA Irwindale) R048067-10g In-Stock(Shanghai or CA Irwindale) R048067-25g In-Stock(Shanghai or CA Irwindale) R048067-100g In-Stock(Shanghai or CA Irwindale) -
95+% CAS No.:38186-51-5
-
SKU-Pack Size Availability Price(¥) Quantity R204229-1g In-Stock(Shanghai or CA Irwindale) R204229-5g In-Stock(Shanghai or CA Irwindale) R204229-10g In-Stock(Shanghai or CA Irwindale) R204229-25g In-Stock(Shanghai or CA Irwindale) R204229-100g In-Stock(Shanghai or CA Irwindale) -
95+% CAS No.:5293-83-4
-
SKU-Pack Size Availability Price(¥) Quantity R064971-1g In-Stock(Shanghai or CA Irwindale) R064971-5g In-Stock(Shanghai or CA Irwindale) R064971-10g In-Stock(Shanghai or CA Irwindale) R064971-25g In-Stock(Shanghai or CA Irwindale) R064971-100g In-Stock(Shanghai or CA Irwindale)