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. Author manuscript; available in PMC: 2016 Jun 3.
Published in final edited form as: Tetrahedron Lett. 2015 Jun 3;56(23):3546–3549. doi: 10.1016/j.tetlet.2015.01.075

Table 2.

Result of high dilution conditions on a variety allene-ynes.

graphic file with name nihms-661126-f0005.jpg
Entry Allene-yne X R Conditions Yield 10 (%)
1 8b C(CO2Et)2 H a 92
2 8b b 50
3 8c graphic file with name nihms-661126-t0006.jpg Me a 87
4 8c b 27
5 8d H a 78
6 8e C(CH2OH)2 Me a 59
7 8f NTs Me a 92
8 8g H a 73
9 8h O Me a 49
10 8i H a 44
a

Syringe pump addition of allene-yne to Rh(I) solution was utilized.

b

Allene-yne was added to the solution all at once.